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Are you computer audiophile? If so, Fidelizer will help you enjoy the music on computer even more.

What customers say about Fidelizer

To show our products and services’ quality, we’d like to share customers’ experience with Fidelizer Upgrade Program. There’s over hundreds of customers who shared their feedback with us so far.

Many thanks all settings as you recommend. Amazing difference in sound. Thank you.

Alister Scott

Hi nice sound Fidelizer Pro from Plus, used in conjunction with a sound enhancer, many thanks from Peter.

Peter Dodds

Thank you Mr. Keetakawee. Fidelizer PRO is working fine and system response has reached to the new level. Very fantastic & am very satisfied. Surely will recommend to my friends.

Best regards,
Ajay

Ajay

Dear Keetakawee,

I have been very pleased and impressed with Fidelizer Pro so far. The music seems to inhabit a more realistic space. I listen to a lot of chamber music and the location of instruments in the performance space is now much more precise and stable.

Howard

Howard

My first impression – Fidelizer Pro is worth every cent 🙂

(Windows 11 X-lite, jcatfemto)

I will post my findings in the jcat thread tomorrow!

Greetings from Germany
H. Wiedow

H. Wiedow

Installed the new Fidelizer. The sound is immediately nicer again, quieter and more detail. I use Pink Faun Straemer 2.16x with Ultra OCXO clock, Jriver, ASIO4ALL, Fidelizer, Windows 11. Thank you Keetakawee.

Regards,
Robert van den Berg

Robert van den Berg

Thanks a lot – the sound is super

Ilya Stavsky

Hello Keetakawee,

First, let me thank you for providing this Fidelizer Pro 8.11 software. 🙂 For everyone who is in doubt, for getting an improvement over the free version, even on an already optimized /stripped win10, let me tell you, it will give you an overall better sound, that is worth every Euro/Dollar.

If you have spent already, let’s say 10,000 on your system, it’s an absolute no brainer to get a minimum of 3% or more, real sound (less digital sounding) out of your Audio PC. In fact, I do not know any available other tweak hardware/software in this price range, that is a better bargain.!!!

I am more or less exclusively, listen to high resolution flac/wav files up to 1bit/5.64MHz 1bit/11.2MHz, as vinyl rips, made from top of the line, highend equipment (turntable / cartridge/ A/D converter). My System is a single fanless Audio PC/Jcat USB XE/each with external Keces PSUs/. Bughead Infinity Blade 7.27 / Fidelizer 8.11/stripped win10,….I do not stream anything (no netcard or wlan in the Audio-PC), modified Magnepan 0.7/2x sub Nubert, Denon PMA A110, NBS Black Label PC, Supra Excalibur LS-cabel, Cardas USB c.

I am not related to Keetakawee, and I am not getting paid to write this here. What a nice hobby we have, happy listening 🙂

my regards, Frank, from Germany

Frank

Music has become even more fun.

Shinichi Hashimoto

Dear Keetakawee

Thank you for this, the sonic improvement is beyond what I expected.

Best Regards
Andre

Andre Letsch

Hello, news from France

Immediately I hear difference between music with or without Fidelizer. More space and detail like Audirvana. Fidelizer is Best product cause is less expensive. Good job. My system roon server and a roon player, Cyrus and jbl system, Jazz and classical music.

Best regard

David Bernard

Hi thanks for your help its running perfectly lovely sound. at the moment running purist with a sound enhancer the clarity lovely clear. one happy consumer.

Pete Dodds

Hi Keetakawee,

Just letting you know Fidelizer Pro has enhanced sound beyond expectation, on my system. It’s softened the top end tightened the lower and brought the mids forward – to sum it up its improved clarity at all levels. Please feel free to use the above comments as customer feedback.

Kind regards,
Max Blank

Max Blank

The truth is that I was shocked that the second PC used as a DAS would gain anything from these programs as all the PC is doing is storing the music in its hard drive like a NAS. Nevertheless, both programs have made a big difference even in the DAS. The music is Cleaner and tighter.

Steven

This software is a must..it listens so sweet 8.11 sounds so calm and open with great dynamics. I can not do without anymore. I wonder do I need a streamer 🤔 I love my sound. Thank you. Keep it up Mr Punpeng 👍 The background is more quiet separation of instruments is amazing. Definitely a lovely upgrade.

H V

Well received, tested and only one word: wowwww it’s great. a great reward given the work put in. A huge progress in listening. Be well. The God of Music still needs you 😁

HOAREAU Laurent

Hello Keetakawee,

I’m very happy, thank you!!

Johann

Johann

Absolutely love the sound when using Fidelizer Pro! We use it to fidelize a windows 11 mini pc running on a linear power supply, using Audirvana as music player. It is excellent! Love the ability to dedicate cpu cores to audio specific tasks while limiting any non-audio tasks Windows is normally riddled with. Using it in the highest possible ‘purist mode’

Cheers, Hans.

Hans Looman

I think stereo increased 2000 usd in quality. You have a great product. Never knew PC properties could improve audio quality so much. Congratulations.

Martin Kirk

Thank you for your support. Now Fidelizer automatically turns on Audirvana Studio and the sound is much better.

Ingo Volland

Hello,

I tried for a few days Fidelizer and I must say that I am very satisfied. What I didn’t understand is if, once you set up the software, this also works with the apps I use for streaming, Apple Music and Amazon Music in particular. Thank you for your support and congratulations for your software.

Best regards
Franco

Franco Truscello

Hi Keetakawee

Thank you so much. Finally, after many years, I see colors in My Music!

Best
Radek Bujnarowski

Radek Bujnarowski

From Plus to PRO, I noticed the most improvement everywhere. Imaging turned out to be more 3D, not exactly “holographic” but definitely more 3D, I can pick up each individual instrument with ease, there’s more transparency, everything sounds cleaner and clearer, mid/high resolution has improved as well as the lower frequencies (cleaner/tighter). Inside Ableton Live this made all the difference as it helps me choose sounds easily, have a better sense of what’s going on, due to improved separation and detail, and helps me make better mixing and mastering decisions. I use a high-end audio interface with the greatest DAC’s and clocking and high-end monitors and headphones and even so, there was room for improvement. Every seasoned music producer should use this.

Kayru

Dear Keetakawee,
Thank you very much for refunding my money. I installed 2PC(JPLAY ControlPC&AudioPC) and it’s working perfectly. Very happy with the result. Thank you very much!

Osamu Kishida (JPLAY)

Dear Keetakawee,

Thank you very much for the refund and providing me with the link to the new download. I am pleased to say that I have installed successfully downloaded and installed it. It is so nice to hear the music once more using your software – just the few days of using normal Windows 11 makes me realise how important Fidelizer is to hearing the heart of the music.

I apologise for putting you to so much trouble, but I greatly appreciate your help.

Thanks again,
David

David C.

The music is flowing now. I am very happy. It was a very good choice. Fidelizer Pro + AO3.0 + JPlay Femto is a great work. It’s a pity I don’t know English. Thank you.

Sebastian Janiec (JPLAY/AudiophileOptimizer)

WOW! There was a significant improvement over the free version, most noticed on drums (impact).

Cheers,
Luis

Luis

The changes are incredible, thanks for the support. This is incredible!!!!!!

José Luis Ramírez

I installed the FIDELIZER PRO Upgrade software…the audio performance IS MONSTRIOUS 🌟🌟🌟🌟🌟

Giovanni

A big monumental thank you! I had forgotten how much of a difference in sound quality comes after installing Fidelizer 8.10!

Kind regards,
Danail Dimov

Danail Dimov

It works a treat. I had to reinstall and then it works. More clarity

Hessel Veldman

Like mentioned in other posts here, in time delivery of the data to the dac is of the utmost importance. The whole chain should be considered. I have been playing music from my htpc for years and I really like the sound. With a DDC, jitterbugs and Fidelizer the sound that comes out of the DAC is wonderful. Last week I installed a new htpc and when I tried to install Fidelizer I couldn’t since the key is specifically for every installed copy. Yesterday I got the new key and lo and behold, the sound really improved so much. I was enjoying the music again. To me that is proof that the output of the pc is a crucial part of the chain. Guess the DDC can only correct partially. There are very expensive dedicated audiophile pc’s but with Fidelizer and the DDC I think those are not necessary. (I only use the htpc for audio and set Fidelizer to very strict settings) btw I am not sponsored by Fidelizer :), I use JRiver as player using ASIO as protocol. I rip my CD’s with Exact Audio Copy at high setting.

Rudie

Hi, its ready now and sound is really nice. Thanks a lot 🙂

Regards
Ladislav

Ladislav

Dear Keetakawee,

Yesterday, when I ended my message with “as expected”, I was not being fair at all.

In fact, I didn’t expect that the Fidelizer Pro would be such an advancement in many respects (coherence, distortion reduction, truthfulness) to the free version, which was already excellent and INDISPENSABLE, to say the least.

I guess the majority of the free version users are not aware of this fact as well. I will invite my audiophile friends over to listen to my system now, so they can share this experience first-hand. I am sure they will become grateful clients of yours too and give you this same feed-back message in the near future.

After a couple of hours of listening to some of my favourite digital recordings, my final words this time are

Congratulations, Keetakawee!

Yours,
Luís

Luís Silva

Hi!

Thanks for the update, the background noise drops a lot with the new 8.10 version, well done!

Best, Ruben

Ruben

Thank you for your email. I have really found it helpful for improving live performance audio (Ableton Live) and I’m adding a copy to my studio pc.

Best wishes, Wes

Wes

Hello Keetakawee,

I just installed the new pro version and have it set to isolate audio processes to one core in purist mode.

Music is running Audirvana using Windows Kernel Streaming, directly to USB on our DAC in bitperfect mode, no upsampling, on a fanless mini PC powered from a linear power supply.

Everything wireless is switched off, streaming goes via ethernet using fiber optic media converters to isolate from our (otherwise uncontrolled noisy) network.

It sounds wonderful. My company Infigo Audio designs high end audio equipment, which are DACs and amplifiers and we’ll use this new optimized player at our upcoming high end audio shows.

Thank you so much for developing a great product! I love it

Hans Looman

Hans Looman

It’s brilliant. THANK YOU.

Naveen

Good day I love Fidelizer best 69 euros spent ever on digital audio…

Have a good day saluti Hans

Hans Voorn

Thanks for the modified installer! Today I install the 8.10 Pro on my Server 2019 core with JRiver and Audiophile Optimizer 3.0, and now I can turn off wifi again!
And now, I listen to music for hours, and I feel, the sound quality jump up a big step from 8.7 Pro! I don’t know it is just my feelings or it is a real progress,
but now, everything is more focused, more clear, more detail, more dynamic, more musical!

I always run Fidelizer Pro first, and after restart, I run AO 3.0 in ultimate mode with C3 settings. With this method I can reach a most lowest process, threads, and handless numbers.
So, I’m very happy, thank you again!

Üdvözlettel:
Horváth Attila

Horváth Attila

Dear Keetakawee,

Thank you for answer. I am very satisfied with the program Fidelizer Pro.

Kind Regards,
Petr M.

Petr M.

Dear Keetakawee,

I´m very pleased with Your Fidelizer. One I use for the big stereo equipment (I have added a music server) and the second (the first one) license for my notebook with my chord mojo. Both work incredible good. More details, more space, so I´m very glad to have Your Fidelizer!

Kind regards
René

René Madle

Hi Keetakawee,

Thanks so much for this amazing software! It really takes your PC to another level of sound!

Antonio Ruggeri

WOW!

I just installed it, combining it with latest the ExtremeStabilizer/TrustedClean on RAMdisk and tested a lot of different combinations of settings in advanced mode. The final result is amazing! I’m using HQplayer with a Topping E30 DAC, upsampling to DSD 512. On advanced Purist I have everything at the bottom off except the last entry, the Multimedia optimization. Then I use 0.5 ms timer, Fidelizer option 1 (long/fixed) and the performance CPU option with non-audio on 1 core. It’s incredible how much better it sounds. Thank you so much for your help and this wonderful program.

Eddy

Eddy C.

Hello Keetakawee!

Thanks for Fidelizer 8.10. I liked your work again, I don’t even know (maybe self-hypnosis). And again I heard more space, airiness, volume.

Sincerely, Terekhov Igor

Terekhov Igor

Hello again –

so I haven’t been using Fidelizer for a while. Listened last night…. wow! Even in the context of my very modest set up the improvement is really very dramatic. To be honest I wasn’t even really listening for it, but right away my brain is saying, hmm listen to that! The sheer difference in the timbres of the different instruments, each located in its own space! Amazing.

I just wanted to say how impressed I am and I thought you might be interested to hear feedback from somebody using it in the context, as I say, of a very modest set up. Thank you.

Patrick Maher

Dear Keetakawee,

You’re great, you did it again! Thank you very much. The new version (8.10) of Fidelizer Pro is outstanding. I listening to music from Tidal with Roon on an old audio pc. And now, it sounds more better than ever before. Like a high end analogue turntable, seriously. The soundstage is huge in every direction also the depth too. I can not believe my own ears. The music full of life, warm, smooth and I feel myself like as to be on a live concert. And it’s rich in details, dynamics, I think English people call this: good PRaT (pace, rhythm and timing). Especially on classical recordings, but the improvement is audible all kind of music.

Thank you once more!

Regards,
Gabe

Gábor Maros

Goodness!… 8.10 is drastically improved! Simply fantastic sounding. I don’t know how you manage to consistently improve Fidelizer but as a result I’ve received far more value from Fidelizer than the very modest cost of entry for this great product. I’ve told every single person I know about it, and can’t recommend it highly enough. Thanks again!

John Sylvester Provatas

Fidelizer 8.10 sounds absolutely amazing! Such an improvement on my RoonBridge on WS 2019. Soundstage, details, resolution is truly amazing. Great work! 👌🎵🎼🎚️

Johannes Gravås Gjerde

Hi Keetakawee,

Thank you for your suggestion. I’ve been using Fidelizer for many years and through many generations. I don’t recall any previous versions sounding as good as 8.10. It is significantly better than 8.8, which I found to be vastly superior to 8.9.

Much appreciated,
Ron

Ron

The best sound I’ve heard with the Fidelizer so far, thanks

Cezary Furmańczyk

Dear Keetakawee,
Never thought, that my setup would improve with your Fidelizer Pro that much! Great Product, well done and thank you!
Regards
Atilla Gülsen
BTW: Have also bought the EtherStream years ago and am happy with it!

Atilla Gülsen

Fidelizer Pro puts a smile on my face every day. It’s a welcome performance boost for the Audirvana software player. The gain in transparency and atmospheric density is outstanding.

Karsten Natter

Thank you for the software. Streamed music from Amazon Unlimited now sounds very close in quality to my NAS source or vinyl. The noise that came through before has been reduced quite a bit. Fidelizer Pro is a great product!

Lansing S Huck

Hello Keetakawee,

Everything is working without a problem, thank you for a fantastic product 🙂

Best Regards
Jacek Grubski

Jacek Grubski

It improved my Windows 11 PC significantly. It was already before better than MacBook Air which I also use sometimes. Now it exceeds it clearly in all terms of fidelity. It is now better than a few dedicated streamers that I have tested here. My system is quite high-end so you may hear the difference clearly. I use Qobuz and Qobuz Player as digital source.

Anonnymous, Finland

Thank you, so I installed it successfully on my first try :-). SQ is very nice at first listening ????.

Richard Kufcak

Hi, Fidelizer product works over the top. A+++ Many thanks.

Giovanni de Nuccio

Works great! Thank you so much for your program.  It’s so nice! 🙂  Everything sounds so new and dynamic!!

Sean Johnston

I was right trusting in you ! I was hesitating since some months but friends of mine encouraged me. They were wright: My server sounds even smoother less aggressive.

Thierry Clémont

Hi Keetakawee,
I’m really impressed from the first listen. Great job!
Thank you and regards,
Patrik

Patrik

Hi Keetakawee – I’ve been using the programme for a few days now with Pianoteq 8 and I’m really pleased. The audio quality is considerably improved and there is far less background crackling/interference than there was before I used Fidelizer Pro. I’m using Asio4all.

James Slowgrove

I installed Fidelizer both 2 licenses to my 5hz jplay dual x minority clean x Roon system. Now it works very well and now I can feel more natural, detail and fidelity from my favorite albums and stream music. Especially localization of sound has been more clear and deeper. Thank you to provide such great tool!

Best regards,
Ryuichi Ikeuchi

Ryuichi Ikeuchi

Hello Keetakawee,

Thanks for the delivery of your Fidelizer. Now, a few weeks an lot´s of listening hours later, I be able to say that Fidelizer is the little thing I have missed – without knowing what… ?

It works very well and the sound out of my PC is now really real and HIFI. Got a Win10 PC USB out with Audioquest Jitterbug => S.M.S.L SU-9 DAC => S.M.S.L SP200 Headphone Amp. => Hifiman Edition XS or S.M.S.L SU-9 DAC out to Active Speakers “Dali Zensor 5 AX” with “SUB Dali E 12 F” in a 2.1 System.

I am very happy with this to take the first step in Digital HIFI. May be better times to come and then I make a further (€€€€) step to more “High End HIFI”. ? Thanks a lot and have a good time…

Regards,
Stefan from Germany

Stefan Leisten

Hi Keetakawee, I have been using Fidelizer on my Intel NUC using Roon with great results. The sound improvement is similar to upgrading a power supply to a streamer, DAC or similar with more detailed coherent sound with more bandwidth all for much less cost than any hardware upgrade -well worth it.

Thank you
Nick Taylor

Nick Taylor

Hello Keetakawee,

Thank you for your fast response. Fidelizer works great – a little more space, more details with a more black background.

Best Regards,
Hendrik

Hendrik

Hello,

It is working very well! I use a laptop (I7, 8GB ram, SSD, Windows10) with Audirvana, exclusively for audio. Tidal Master HiFI. Discovered Fidelizer by Audirvana website. Sound quality has never been better!

Thank you!

Americo Ide

Installed it. Makes an audible difference. Enjoying the music much more. Thanks.

Sanjay Ladiwala

Thank you so much, your Fiderlizer is amazing and works great
Best wishes
ae

ae

Dear Keetakawee,

Everything works as it should now and I immensely enjoy the sound I get with Fidelizer!

Best
Stefan

Stefan Eriksson

Hi Keetakawee,

I am very happy with Fidelizer Pro. I use Purist as user level and Long/Fixed as processor priority policy. It greatly improves the dynamic, transparency and details of my sound system.

I am using JPLAY so I choose Long/Variation priority policy to start with. It gives an impression of more details at the expense of reduced micro-dynamics and loss of mid-bass. It may sound more like analogue but it is not my cup of tea. To me the Long/Fixed policy is more accurate and natural. That is just my humble opinion from what hear out of my system.

I thank you for bringing this product to the audiophile world…….great job and great product.

Best regards
William Chan

William Chan

I Love your Product Fidelizer Pro. I hear the difference in the first seconds ! I Love it !!! Thanks !!

Hans

Thank you!
I have listened to the PRO version of Fidelizer for 5-6 hours of various types of music.I was surprised at the free version of Fidelizer and how much it increased the enjoyment of my music. I am now even more convinced that my music sounds better in so many ways. Vocals are so much clearer and detailed. The soundstage is deeper and there is more detail being heard. I used to laugh at these adjectives being used by people when describing music. No more! You have created a wonderful product. By the way, my system is less than $10 K.

Kim Hixson

Thanks a lot Keetakawee. The 8.9 version updates do have improvements in my system. More details and more special and dimensional feels.

Zhou Happy

As always I find the flaw: NOT natural sound. A purely aseptic environment. resampling: NEGATIVE + USELESS. It is first to listen to Spotify (IDENTICAL philosophy and mobile use). FIDELIZER PRO: the TOP at the moment; It is NOT possible to create a dedicated environment and we rely on CORE isolation with EXCELLENT function: LINEAR natural harmonics output, you can feel sensibilmtne SILENCE AND that the windows processes do not INTERACT in the audio: natural sound never heard in a windows environment. (the same cannot be said of DAPHILe who works blindly, not being able to drive the players nor really know how they work and how they have been designed (changes to the wave signal). WI_FI; wired network, identical: audio DEFECTS. I DO NOT add inconvenience to use . it would be better with an audio streamer player that has quality components than NOT a mini pc (this is obvious with the DAC but the USB output of the pc, which should be isolated from the charging function, cost: 300 euros or more). favor of Daphile: dedicated audio environment. Same thing for jplay as a player. It should be better tested audiophile optimizer (I haven’t tried it). Summary: Daphile is not worth the effort. (personally I take care of setting up audio systems and customizing systems on request). a greeting

Stef B

Hi Keetakawee

Thanks for the Fidelizer 8.9 update. I never did get back to you when I initially purchased Fidelizer Pro, so rather than try to describe the sonic improvements (of which there are several, including a more spacious soundstage and improved clarity and timing), I’d just like to say that Fidelizer made it viable for me to listen to local music files and streamed content from my Windows 10 laptop. That massively increased my listening options, thanks!

All the best,
Luis Sanguesa

Luis Sanguesa

Dear Keetakawee,

Thank you so much for the new Fidelizer 8.9 – I find it better sounding than the former updates: a bit more free and softer. The music flows so wonderful.

Steen Sloth Olsen

WOW
Best sound I’ve ever heard. Fantastic!!
Jim R:

Jim R:

Hi, extra thanks ! Whaou the sound IS Amazing with fidelizer 8.9 and Hqplayer ! Diretta asio to my allo usbridge SIG streamer running gentooplayer. The 8.9 version IS a great upgrade about sound quality ! Great job !!!

Henri FALCO

Hi there!

I love the outcome! HUUUGE difference!

Thanks a lot!

Fer Abi

Hi, I’m very very Happy. I think it’s extraordinary!!! Thanks a lot and i have to say: GREAT JOB

Simone Saddi

Hi Keetakawee,

Thanks so much for all your help and attentiveness. Your software is truly amazing, and one of the best value investments someone can make in their audio system. Fidelizer Pro and AO3 together turned my little music server into a true high end player, and finally allowed computer based audio to compete with disc playback on my “reference” (for me) Modwright Instruments tubed OPPO player. I will be making music servers for my clients in the near future, and wondered if there was some type of volume licensing deal if I purchase multiple licenses at a time. Thanks again for your help!

Regards,
Waylon

Waylon Truett

Wow! Just started and can’t believe the difference. Thanks for the help.

Nick Jakubowski

I spent a lot of time comparing the PC+Fidelizer with the Aurender S10 and could not tell the difference. For this reason I returned the Aurender S10 today. This means my system will be on of these:

PC running Tidal -> USB cable -> Playback Designs MPS-5 -> Interconnects -> VTL 300 Monoblocks -> Speaker Cable -> Dali Epicon 8 speakers

PC running foobar2000 or MediaMonkey -> USB cable -> Playback Designs MPS-5 -> Interconnects -> VTL 300 Monoblocks -> Speaker Cable -> Dali Epicon 8 speakers

I am very happy with the sound of both systems above. Fidelizer saved me a lot of money I would have spent on the Aurender if I did not have it. (The Aurender sounded better than the PC with no Fidelizer).

Fernando Saldanha

Hi Keetakawee,

Jee, men. I am so enjoying the music now with Fidelizer. I should have discovered it much earlier. You really did a great and thankful job!! Really thanks for that! And, yes, I am spreading the news. My gear is a media PC feeding via USB my Qutest Chord Dac that is connected to a SPEC-RSA-M99 that brings the music to Magnepan 1.7i speakers. Great combination.

Thanks again
Best regards,
Bert van der Waal
The Netherlands

Bert van der Waal

Hi Keetakawee,

Thanks for the reassurance. I spent a good few hours over the weekend listening to a variety of music I know well and can confirm that the improvement is significant. I experienced a better soundstage and greater separation of instruments. Bass notes seemed better defined.

Keep up the good work!

Regards,
Jeremy.

Jeremy

Good Morning,

Thank You! It works perfectly and sounds great. It’s a noticeable step up from the free version.

Michael Koperwhats

Dear Keet,

as player I use the HQPlayer. As you can imagine a lot of computing power helps a lot, especially since the converter (Denafrips Pontus) also processes DSD. Makes itself sonically very leasantly noticeable. Problem: I could offload some of the computations to the Nvidia card GPU if, yes if it had enough computing power. According to the HQPlayer manual, a computing power greater than 5 is required, but my card can only do 3. That’s why it’s not even triggered. Now the moon prices come into play, which are demanded lately for Nvidia cards, if you can buy them at all. All “shelves” are empty and my piggy bank too….

So I came across the Fidelizer program and — taadaaah — the HQPlayer plays “at the next level”. Of course, this is no substitute for a new stronger graphics card, but for now it’s the best and cheapest solution. My computer (CPU alone) now manages a resolution of 4 X DSD vs. 41.8 X 256 oversampling smoothly. The converter can process data up to 41.8 X 1024, so there is still enough air left to go up.

Thanks for the good product
Thomas Hintz

Thomas Hintz

I have set up the system yesterday for roon server and hqplayer, it’s sounding better than running a Linux os or Roon Rock. More richness in the mid and more airy in the treble.

Matthew Ip

Hello Keetakawee, first of all I wanted to thank you for the correctness and availability you have shown by solving my little mess –
I installed the Fidelizer PRO today and it is Ok set on PLAYER – I did some listening and I actually noticed a major silence compared to the PLUS – for the connection to the DAC I still have a Wireworld Starlight USB cable and the iFI purifier 2

Good music …… always

Paolo Del Frate

Thank you very much. Recently placed new motherboard, ssds, cpu and ram (i9 12900k, Asus Z690 Pro Gaming D4, Western Digital Sn850 Nvme 7000, Kingston Fury Beast DDR4) and can hear some improvement, sound became deeper basswise. Still Fidelizer is a cherry on top to hear everything selectively, increase a soundstage and tame distortions, getting nice results especially with dsd’s on purist level for audio player build (offline). Super convenient for installing and uninstalling these audio settings as I use this pc for other work (non audio) too.

Best wishes

Filip S

Hi Keetakawee,

Back as promised. Your proggy works flawlessly. Smooth as can be. The free version is a good product in its own right, but this is well above it. I am a happy bunny. This was money well spent. And a great transaction experience to boot. Thanks mate, keep up the good work!

Eddie

Eddie

Makes a huge difference in sound quality!

Thanks,
John

John Bradley

Hi. Thx, got it to work. This is my “review” of your software.

Fidelizer Pro offers a bridge where sound and music merge into a believable, lively and musical experience. The sound pushes the music to a higher level where you get more emotion, more depth and more joy from the music one loves. The software is cleverly written and outthought, using sound profiles adapted to specific consumer needs and the configuration of your hifi system.

Congratulations, Keetakawee.

Patrick Bervoets

Dear Keetakawee,

Thank you for developing this program, and for organising my download link so quickly. The system is sounding good! I read about your product on this page, about halfway down; post by Glenn1977

https://forums.stevehoffman.tv/threads/jriver-17-vs-23.744136/page-4

Kind regards,
Andrew McIntyre

Andrew McIntyre

Thanks for your help. Very pleased with the upgrade in sound quality.

Regards,
Dave

David Allen

Thank you very much. Never expected it’s possible to get such sound from Windows OS. A+ product, great job. Now the next further update the Fidelizer convinced me to: dedicated fully silent pc audio server. All the best to you

Filip

Hi Keetakawee,

Thanks for your answer. It’s clear to me now. I have used the free version of Fidelizer for many years, on my media server and on the pc connected to my stereo system. I was never convinced of the added value, so I never bought the software.

That has changed recently, after I changed all switching power supplies in my stereo system and my local area network to linear power supplies, and upgraded their DC-cables. Now I can hear the effect of Fidelizer installed on a pc running Windows 10 and Logitech Media Server. It serves music to a Naim streamer or an Innuos player via UTP cables.

The high frequencies have become cleaner, making it easier to listen to complex music and poor recordings, and improving the ‘stage image’ if the recoding allows it. So, even with such a ‘distant relationship’ between the pc with Fidelizer and the stereo, Fidelizer gives an improvement. An important condition is that the connecting hardware has sufficient quality.

Kind regards,
Arjen

Arjen

And why I didn’t know this before… My Roon has become even more beautiful, the orchestral music has revealed the smallest details, a slight shock turning into complete delight . Bravo Keetakawee ! P.S. And thank you very much for the $ 5.

Aleh Krautsou

I spent the afternoon getting acquainted with the Intel NUC with Fidelizer Pro. Just finished enjoying Louis Armstrong Plays King Oliver/St James Infirmary Blues in Hi-Res 96Khz. Just magnifique. Tone. Texture. Immediacy. Bravo Keetakawee.

Edwin Hiu Aline

I am really very impressed with Fidelizer Pro. A definite improvement in the sound quality. Keep up the good work!
Arun

Arun Venkataraman

Hi Keetakawee, Everything is working perfectly, including Audirvana. I have it set at audiophile. Sound is better across the board, especially on the base end. A reference song I use has a stand up base. I always felt it was muddy in the lowest register. It is now cleaned up. Thank you for your patience. Scott

Scott Zupanc

Thank you. Love it. Sound is more vibrant now. Very clear difference.

Rado Nikolov

Thanks for the prompt responses. First off, the $69.95 for the pro version of Fidelizer was worth the investment for my audio system. I could hear the improvements in a subtle but significant way… blacker background, wider soundstage, more detail up and down the spectrum, more live presence, and better recording space ambiance. The music has more life and breath. It took me closer to my reference system of 20 plus years ago than at any time before, and at an affordable price.

That reference system consisted of: Sources – a VPI HW-19 Jr. turntable with a Rega tonearm and Grado cartridge , and a factory upgraded California Audio Labs ICON MKII CD player; Amplification – Music Reference RM-5 preamp with upgraded tubes, and 2 McCormack Power Drive DNA-1s; Speakers – a pair of floor standing Apogee Centaurus Slant 6s; Interconnects – Kimber Kable Silver Streaks; Speaker cable – 4 runs of Symo cable; Isolation – a JustARack equipment stand, and equipment spikes where needed; Power Conditioner – Audio Power Industries Power Wedge 116 and dedicated wall power.

I tell you this as a point of reference to my sonic sensibilities and the kind sound I strive for. This sound was seared into my soul in 1968 when I was still in High School and heard my very first “true” audiophile system. It was at a friend’s house. The song was Jimi Hendrix’s version of “All Along the Watchtower”, The system was a Dynaco ST70 tube amp, Dynaco PAS 3 tube preamp, pair of AR 2AX speakers, an AR XA turntable with a Shure V15 Type 2 cartridge. I can still hear the sound of that system in my head today.

My reference system is long gone, life can do that. My needs and wants today are vastly different then 20 years ago. Still, the sound I heard in 1968, in my reference system 20 years ago, are where my ears and heart are sonically today.

This is where your software comes in. I live in apartment and my financial priorities are different now. My system reflects that. I am a lifelong Grado fan, and my headphones are the SR 225Es. But I don’t always want to listen with my headphones. I need to be able to hear the music clearly at volumes that won’t make my neighbors upset. So my system now is the Schiit Audio Asagard 3 headphone amp/preamp, a Schiit Audio Bifrost Multibit DAC with their Gen 5 USB, V1 (bought used), an Adcom GFA 325 V1 power amp (bought used), a pair a Klipsch Reference R-51M Bookshelf speakers on metal stands, a Polk Audio PSW10 subwoofer, a beelink mini pc (bought used) and Wirewold interconnects and cables. The primary source music is from the Qobuz desktop app. We’re a long way pricewise, and other ways, from my original reference system. The current system sounded good, I enjoyed listening to it and I didn’t want to keep pouring more money into because of my other priorities. But I wanted to see if there were any tweaks that could be made without spending hundreds more. In researching Tidal, Qobuz and a few others, I started reading about software solutions. That’s when I read about yours. A very long story short, your software brought me closer to that old reference system than I thought was possible on my budget. I love listening to music, more than I have in many a year.

Kind Regards,
Neal

Neal

Good morning Keetakawee,

Thanks for your fast advice! Now my compliments for your incredible software! I just installed the core improvement. The sound is incredible better!!

Jan Allis

Hi Keetakawee,

Just a quick message to tell you that I’m really happy with the quality of Fidelizer Pro. There’s a real improvement compared to the Free version. Thanks for your precious help. Have a nice day.

Adel de Saintdenis

Hello. It works thank you thank you. It really is a different world in terms of music. Thank you very much for this. It’s great .. a very big change in quality ..it’s almost impossible for me to enjoy without it.

Yanai Lahav

Yanai Lahav

Hi,

Thanks for Fidelizer Pro. I am deeply impressed. Now I found the sound I was looking for a long time. Instruments are sharply delineated, the stage is tidier and clearer. The bass is deeper in my stomach and Fildelizer is in my heart. Great job. Thanks. I am listening with Roon Software, McIntosh MA9000 Amp and B&W 802 D3 Speakers.

T-li.de

Teulux Licht Lampen Bielefeld

The latest update / version installed. I am using this on a fanless windows 10Pro pc. Only Roon Server is installed here. This is then connected to the dCS Vivaldi DAC with a Shunyata Sigma USB (soon the Omega USB). With the first notes I immediately heard an improvement in openness and transparency. And I cannot say otherwise, without the Fidelizer software it certainly sounds a lot less. It also sounds better over the network in my office with a different computer. Roon Server is less affected by the Windows operating system. THANKS !!

Roony

Core isolation now works with my wasapi driver for DAC, and it sounds more fantastic then before. Just want to say great thanks for your job, it’s really makes people feel happier! I loved music since a was a child, and the digital sound always seemed to be sterile and lifeless. But you product with JPlay Femto makes me happy again. I returned to my old records and they are full of life and energy. It sounds really great! Your job is great! And the heavy music sounds awesome. 🙂

Роман Сидельников (JPLAY)

Thank you for the refund and I will continue to use Fidelizer over the other software anyday, why, because the sound quality is superior and it just works without me having to do much at all. Great product.

Thanks,
Chris

Chris Ivey

Good Afternoon Keetakawee,

Is it afternoon where you are?

Thank you very much for sending the software link so promptly and also thank you for producing such an effective piece of software. It works and it works extremely well indeed. I heard an improvement in clarity and fine details immediately but perhaps the greatest improvement was all round enjoyment of the music; I found myself tapping my toes to music that I would normally have just played in the background. This added enjoyment can’t be measured, it just is.

I have come across a few negative comments about your software and I only hope that you don’t take those remarks to heart. Those people are speaking from ignorance and not experience, they’re welcome to their opinions even if they are not justified.

Regards,

John Millar

John Millar

Hi Keetakawee,

The pro version works great! The free version made a sound improvement so I bought the pro version. Thanks a lot for making fidelizer. I think I got more than 70 bucks worth of sound improvement!

Ruben Giraldo

Thank you very much for your help, because I couldn’t have made the change on my own. The sound image is no longer so flat and more spatial and detailed.

Regards Thomas

Thomas

It’s fantastic, really breath taking! I’m very pleased with sonic result. Everything much better sounding than free version of Fidelizer. You’re a Genius. I’m sure in that I have to take the next level so I will become a Fidelizer Pro user soon. Thank You Very Much!

Regards,
Gabe

Gabe

Thanks again! This time I didn’t need my equalizer. Sounds great!

Wes James

Hi Keetakawee,

Thanks – that fixed it. Very happy with the depth of soundstage as a result of using the Pro Version!

Kind Regards
Dirk

Dirk Du Toit

Already had an awesome listening experience this night, with only Fidelizer Pro installed on my audio pc (not yet the control pc). I really can’t believe my ears. The 3D soundstage, the tonality, the separation, I am really impressed and can’t stop listening. Thanks!

Ruben Vermeulen

I installed Pro and with my set up ( Chord Mojo , Beyer T1 , Meier Corda Classic ) I notice the improvements. It is amazing how a recording of low to medium quality can sound much better. In fact the recording is likely of a better quality that was not obvious before.

Wolfgang Zumhulsen

Hi, I am very pleased with the 8.7 upgrade, and I am using the new Audirvana enhancements. The sound quality increase is absolutely fantastic from the previous version I was on 7.10. The soundstage and imaging has greatly improved as well!

Thank You!
Alex

Alex Simon

Hi Keetakawee (Great name!)

Thank YoUUUUUUUUUUUUUUUUUUUUUUUUU. Everything great now. Amazing product, you must be very proud of your achievement.

Regards,
Bob J

Bob J

I have all the Beatles albums and have played them many times. But they never sounded as good, clean with great ease as they are sounding tonight! Very musical too. ?

Milind Pai

I did not expect the results to be THIS amazing. Wow! You should be proud. You can’t make something this powerful without having a passion for music! It feels like I spent thousands on upgrades! Everything sounds new! Perfect. Thank you for doing this.

Michael B.

Dear Keetakawee,

First, I must confess, I had a free version of Fidelizer for probably over 2 years before I now finally upgraded – Sorry! I first wanted to be sure the hardware / software combo will remain before I upgrade.
I’m using 2-core Celeron, fanless Win 10 PC with SSD and CD/DVD/BluRay, with a switching power supply. Media PC (is also used for movie watching (Netflix, Amazon Video), audio streaming (tidal), Video Conferencing (WebEx, ..)
PC runs Roon Server as player software (iPad Roon remote Remote + Remote desktop) Logitech Harmony + other Software, such as JRiver, ….. Audio Output is via USB with ASIO interface (see attached for digital setup)

Comparison Fidelizer pro vs standard (free) version:

I’m running Fidelizer in “purist” mode, with seemingly no detrimental effect on video performance

F-Pro kills about 20 windows processes vs. only 10 for the standard version (?)

Pro cannot be re-started manually while OS is running? Only started automatically at startup. – The standard version could only be started manually (if I didn’t pay attention 2 or more instances would run simultaneously)

Is there a difference between “high performance” and “high transparency mode” on my PC? Since my processor has only 2 cores –> I guess none?

My listening experience:

Without Fidelizer I often hear massive distortions (similar to harmonic distortions but not correlated with audio but rather noisy in character. It masks the details but also covers up bass and high frequencies. Music therefore sounds flat and annoying, emphasizing mostly mid range frequencies). After reboot it becomes maybe bearable, but it would get really bad after running windows for several days. Restarting Fidelizer, restarting would help for a while. But after a while I would have to reboot anyway.
The Pro version of Fidelizer is definitely more effective. The sound is much cleaner and more detailed, but also a richer and smoother sound (less mid range emphasis)

With my PC setting, Fidelizer is an absolute must. I’m considering the Nimitra with linear PS in the future, but tend towards a dedicated player (e.g. Aurender) for Audio. The neat thing about the nimitra is the bridge (network) setup. My concerns are that an external linear power supply may not be enough, as there are probably other voltages needed on the board (i.e. using DC/DC switches?) and 2nd (more important) windows will always have unnecessary processes running, even with Fidelizer. Ideally there would be dedicated hardware that completely caches and re-clocks the signal, but I have not heard about such a device that completely isolates the source – they all seem to let some noise through (according to reviews and personal experience), which is somewhat disconcerting.

Thanks for your excellent work. All the best for your business,

Regards,
Beat

Beat

I have been using the Fidelizer for a while and i am very impressed. I’ve turned it on and off several times as a sanity check and am amazed with the sonic improvement every time I turn it back on. I have also played with the settings and bypassed the sonic effects as I feel they degrade the sound. thank you for your excellent product and I look forward to supporting you in the future.

James Ryckman

Hi Keetakawee,

You are a great man. Fidelizer Pro works very well. I’ve set purist and audiophile. All the noises (pops) are gone and the sound is more transparent and three-dimensional. Thank you very much.

Giorgio

Giorgio

Hi,

Yes, I believe it’s the best sound I’ve ever heard from this system until now. The DAC always was very transparent and unforgiven of any noise that came to its inputs and…windows 10…jesus, so much running garbage ruining the sound…

Thank you very much for your job on these issues, they are surely solved now!

Best

Rui Portocarrero Sarmento

I have a very revealing system. A few years back I upgraded my XMOS sound card (USB to i2s) crystals from NDK SD to SDA’s with a noticeable difference. The sound gained details, space, bass definition, the background was darker.

Then I built a balanced, single-ended class A amplifier, DC-coupled (two gain stages only). The overall sound was impressive. I feed audio signal straight of the DAC I/V resistors, and into the amplifier (very high input impedance as well… helps with linearity at high frequencies:))

All along I was working on minimising the switching artifacts coming from the laptop (used as a JRiver streamer), so I was under-clocking the CPU, killing the unnecessary services, playing with the power supply. Every single bit contributed toward a more natural presentation.

Then I came across Fidelizer, and tried a demo version. Initial impression was very positive (immediate improvement in bass definition and darker background, more space as well…). I decide to get the Pro version, and now I am totally hooked on this app. The sound is so satisfying, wide and deep that I feel like I can stand up and walk to each instrument. Stunning.

I will now install Win Server 2016 from the scratch, and then install only the bare minimum (JRiver and the necessary drivers), and then treat it with Fidelizer Pro.

The audio player without network connections profile is infinitely better than any other profile. Option to choose filters is also nice.

The best thing is that the Fidelizer opens the JRiver on bootup and then starts playing the music. Fantastic!

ExtremeBoky

Hello,

Sorry for taking so long to get back to you. I just wanted to let you know that I am very pleased with Fidelizer: a few weeks later, my hifi suppliers were at home to deliver my new Mark Levinson amp and they had goosebumps when we turned on the system — I am fully convinced that your wonderful product was a significant part of that feeling. Keep up the good work.

Best regards,
Philippe

Philippe

Hi,

Just a few words to say it is unbelievable improvement, a big WOWWW. Many thanks for this great software.

René

René

Hi Keetakawee,

I could perceive that Fidelizer brought a very nice and welcome improvement of sound quality in addition to JPlay and Audiophile Optimizer. The playback is smoother, more detailed and more natural. Thank you very much!

Heiko

Heiko (JPLAY/AudiophileOptimizer)

Hi Keetakawee,

That was it, fixed and reloaded everything and it works perfectly with correct version number. I would like to thank you Keetakawee for producing such a fantastic product, the sound I am currently enjoying in my system is fabulous, the most beautiful part is that a digital recording is no longer a flat dimensionless image it’s this immense three dimensional volume that has front to back depth and side to side width and top to bottom height extending beyond the speakers. The sound emenates from a volume it’s just incredible much thanks! For once digital is vible reproduction of a recording. There are more things things than I can mention that your product corrects/ improves!

Thanks again
Harry

Harry

Keetakawee,

The new version makes the vocals so “alive”. At least that is what I am experiencing. Love it!
Thanks,
Milind

Milind

Fidelizer sounds great with Audirvana and JPLAY (in ASIO output).

Regards
Jarek

Jarek (JPLAY)

I take everything BacK!!! ITS GENIUS!!!! Got my Latency down from 256 to 64!!!! Thanks so much!!!

My best!

Chillwalker

Hi,

I have to report back since jplay is configured well as dual setup, hibernate on my win 10 1903 audio pc, the sound quality has improved dramatically with Fidelizer Pro. The setup only with AO3 and jplay sounded good, but the server2019 audio pc sounded better. Now the win 10 audio pc with Fidelizer pro sounds a few steps better than the server2019 audio pc. You did magic! First time ever I’m listening in 3D with a pc-setup.

Thanks a lot and keep up the very good work!

Best regards tom

Tom

Your software installed without event and configured easily. The results, frankly, have surprised me.

I listen to music through headphones (neighbors, you know) and have put together a Schiit stack (Modi, Magni H) with decent cables and I have headphones from BeyerDynamics and Sennheiser. Things sounded good.

Now they sound “better”. It’s a bunch of ‘soft’ words that are totally subjective. Things now sound: more detailed; better defined in space and tighter, Your software has brought joy. Thank you.

Wayne Robinson

I recently bought Fidelizer Pro after first trying the free version. And I am very pleased with it.

First of all the product was delivered very quickly. The program runs without any trouble. After I sent Keetakawee a mail to ask for suggestions for the program settings I got an answer almost immediately. NOW THAT IS CUSTOMER SERVICE!
The sound quality in my system improved noticeably. Two things are most striking. 1. I hear more separation between the different instruments. 2. The soundstage has become wider which improves the emotion I feel whilst listening.

So for anyone considering to buy Fidelizer Pro my advice would be: JUST DO IT, YOU WON’T BE DISAPPOINTED.

My setup:
I mainly listen to classical music and jazz
I use Audirvana to stream from Qobuz. And I listen to internet radio stations from my web browser.
Therefore I use a simple HP-laptop that is only used for streaming, I do nothing else with that computer.
From the laptop I feed a Musical Fidelity 192 USB to SPDIF-converter.
From the USB to SPDIF-converter I run a coax to my Audio Note DAC.

Kind regards from a happy Fidelizer customer.
Harm (The Netherlands)

Harm (The Netherlands)

I was skeptical of this. Although it had many good reviews. So I purchased it. Let me tell you. With the correct settings for your system. It makes a remarkable difference! YMMV of course. I was pleasantly amazed. I am not sure how it does so, but I am just glad that it does. The difference is not subtle it is profound. I am using the most expensive DAC made. The MSD Select DAC II. Loaded with mono power bases. I am using a dedicated NUC music server. The difference this makes is truly amazing.

T. Cohen

Hi

I tried the Fidelizer Pro this morning. First impression is that the sound is richer and more natural, it seems that the noise floor has decreased. I am happy with what I heard.

Regards
Vincent

Vincent

G’day,
I installed it and ran two services with it, MinorityClean.exe and Foobar 2000.
As you’d know, after I rebooted, it took a little while to configure things.

I’m going to share a little about my hardware to possibly give you an insight into
my experience and the feedback that will follow. My computer is an industrial 4 core Intel (
8watts) laptop RAM, in a fanless case. With HDPlex 200W linear power supply separately powering
two SSD’s (one for WinServer 2012R2, other WAV files), the motherboard, and a JCat Femto USB card.
Curious Cables (silver core) USB into a relatively unknown DAC (it’s about midway between PS Audio DirectStream
and Denifrips Terminator for $2K Australian) into a Datasat RA-2400 (2 x 400watt) amplifier. The signal wire is all copper ribbon wire,
2 inches wide for speaker cables. Into a pair of Lenehan Audio ML2’s (Duelund internals) set on springs for isolation.

The room has no treatment, it’s just a big box – I’m working on it now.

So.. what happened to the sound after your Fidelizer did it’s business? First I thought the bass diminished a fair bit,
and tightened it up a lot. I thought the horrible muddy sound in the bass was from my room modes. Obviously,
it was not just that, for as I listened further the bass was now revealed with the rest of the music. The bass became more
controlled and articulate, I could hear the skin of the drum in the bass sound. Instead of a pressure wave in the lower frequencies (midbass wasn’t as noticeable), it sounded more
like an instrument (even in my untreated room).
My speakers are isolated on springs, and are without a doubt the best engineered item in my system, they measure very well
both electrically, and sonically on and off axis. Fidelizer turned my computer into a real music server, and what I thought was
a pretty good sound stage revealed so much more going on in the recording. It’s a bit like those pop up books where as you
open the pages the images unfold and give you a layered 3d image with depth. Yeah well, the pages have opened for my music.

I’ve gone and purchased Jplay FEMTO and I’ll be spending time on the forum to see what’ll work for me. I have reasonably good hardware,
just needed to get the software, now room treatment! Your program is the very first computer enhancer I have tried, with MinorityClean.exe simultaneously.

Thank you so much for a product that delivers!
For the same cost as my speaker springs, it does about the same in revealing the music!

Many thanks,
Rick Calder (Australian in Texas USA)

Rick Calder

hello Keetakawee!

Greetings from New England USA, and thanks for sending over F pro…I have to admit, I wasn’t really ready for the difference between the free version and pro, its truly astounding, really. Forgive me that I didn’t buy this sooner but I’ve had a lot going on personally and healthwise and haven’t had time to listen to music like I used to, and I didn’t know what I was going to do with my system etc, so it kept getting put off.

The soundstage and depth is GREATLY increased, its almost as if my room got bigger…and detail/spaciousness/clarity is increased, as well as a smoother, more analog sound to everything.

The most amazing thing to me, is its almost as if I’m listening in slow-motion; not that the music is playing slower of course, but that there’s so much more to hear, that it “goes by” slower in perception. I know that doesn’t make a lot of sense, but its more “relaxed” I should say, so its like brain is maybe processing it differently b/c of this. Time almost stood still; I listened to music for about 2 hrs straight and it seemed like 10 minutes went by.

there’s so much more in the music, I was completely blown away when I heard some delay trails on the vocals of a song I love from the 70’s that I’ve heard 1,000 times + and never knew they were there!…WOW is all I can say to that. Just to qualify myself, Im a pro musician and sound engineer most of my life, having worked in and around hollywood CA studios for almost 30 years, up until just a few years ago.

I appreciate your time with all this, b/c I know you’re very busy. thank you again and again for such an amazing product; I do believe its the best thing to happen to listen to audio since I’m not sure what.

all the best kind sir,
Angelo

Angelo

Thank you Keetakawee, Your program is the best!. Fantastic improvement all round.! With W4S recovery and Curious evolved my laptop has replaced my modified Oppo BD player .I should have done this years ago.

Thank you for developing FidelizerPro, I’m stunned at the improvement (and I’m still in Audiophile setting.) Shall venture to Purist level and beyond when braver with use. The quality of sound from my laptop is simply awesome. High praise to you!!

I haven’t heard a better improvement to digital playback since an EAD DSP7000 mk3. Best Regards to you and stay safe.

Warren

Hi Keetakawee,

First off, while playing music sounds fantastic. Resolution is increased, imaging is much better, soundstage bigger and deeper. Things sound more natural in general. Thank you for providing a product that helps me eliminate this extra noise from the system, it has been a problem for me for a long time.

Bryce

Hi Keetakawee,

Just had my first 2 hours with Fidelizer pro. I enjoyed listening more; it was more worth it. I can creep deeper into the recordings; closer to the source. Red book comes closer to DXD.

My system: Asus laptop, Chord Mojo, Hypex Ncore400, KEF LS50 (in small living room)

Like so many already wrote: the investment is really worth it. Thank you for doing the math so we can enjoy the music.

Greetings,
Joppe

Joppe

Fidelizer works really, really well here. I am surprised at how much hash disappeared. A much more relaxed natural sound, but the best is the sound stage. Each track is now much more its own soundscape, each track (Jazz, Rock, Classical, Americana, Singer Songwriter) has its own quality of “space music”. Another way of saying it is that the holographic sound I already had is now intensified. Hope that makes sense. I am also surprised Fidelizer has made these improvements since it is on my streamer/Lenovo laptop, T 530, 16 gig of ram. The laptop with attached USB3 external music storage outputs to an Allo Digione Signature via my LAN. The Signature outputs to an updated Yggdrasil, then to Pass Labs XA100 mono blocks, to Golden Ear T Reference speakers. I’ve been planning to replace the Digione as the weak link in my system but Fidelzer has eliminated most of my complaints. Am actually amazed at how good the Digione is. ,

I’m am using Purist/Streamer mode with default advanced settings. I compared Core Isolation and Processor Priority settings and have preferred default settings.

BOL.

One thing I have say, the tweaks is worth a buy. Music is organic, natural, dimensional and crispy clear with darker background. I have never heard any other tweaks closer to this both on Windows and Linux.

I wouldn’t recommend Free version, it may spoil the first impression of the tweaks capability. A cheapest computer with this tweak can replace transports that cost several thousands.

I am currently running the tweaks on a $69 worth computer and it beats my most expensive transporter. Awesome job!

Thanks
Prasad.

Prasad

Hello Keetakawee,

thank you for the support. The software installs and works flawlessly on my Windows server 2012 R2 machine. The sound quality is excellent (as ever).

kind regards,
Frans

Frans van den Hoven

I have been testing Fidelizer for months and I can assure you that the PC with Fidelizer plays music like a very expensive CD player even with non-audiophile files like Spotify’s, therefore, you could offer Spotify to pair it with Fidelizer. If it’s done and it’s okay, please don’t forget me.

Sergio Simonetti

Dear Keetakawee,

Thank you for a quick delivery. Fidelizer is working great, as I knew it would 🙂 Subjectively, even better on my new fanless laptop than on a desktop. Thanks again.

Best regards,
Oleksander

Oleksander

Hallo, thank you for your greatest support. Fidelizer works now very well and i get a much better Sound.

Martin Zareba

New Fidelizer significant improvement over previous iteration. Thank you. Wish I were still doing reviewing.

Bill Gaw

Once again I’ve spent my money perfectly in purchasing Fidelizer 8.5 Pro. Along with the Purist ROM for my FiiO X7II, you have made my music enjoyment the best I’ve ever had…..THANK YOU!!!

Jim Rollins

Thank you for the refund! Second PC it’s getting installed on. Loving it and this new one is for an audio specific PC. Really getting close to CD transport quality.

Regards,
Nawaf

Nawaf

Just cant bare to listen with out it now! It sounds even more analog with new x570 chipset and Ryzen 5 3600 CPU.

Victor Chu

Hello Keetakawee,

many thanks and congratulations: To be honest I did not expect very much, just wanted to stay up-to-date. But Fidelizer 8 brought about a significant improvement on my audio PC (2 PC setup, both WS 2016 core mode, AO 2.20 beta 5, jplay, minimserver, Kazoo). Mids seem to be more detailed, and listening is definitely more relaxed…

Thanks again and regards
Adrian

Adrian Schuster (JPLAY/AudiophileOptimizer)

Whoa! Lower noise floor, more details and increased soundstage. 70$ well spent! Big thank you!!

Peter

Thank you for your quick reply, I believe I am already very impressed with the result, your program works and sounds great, especially with the master tapes on Tidal, it is really audible..

Regards,
Onno van Leeuwen

Onno van Leeuwen

Hi,

Thank’s a lot for the refund. I have installed the two software (Control and Audio PC) with the settings you advised to me (on advanced settings i checked “lower non audio process more aggressively”)

The result surprises me. Sound is really better ! Much more details, precision and dynamics…Thank you for all.

I asked Marcin (JPLAY) he advised me to keep Hibernate mode with FIDELIZER. Really Femto + UPPLAY + FIDELIZER is very efficient for computered music on PC.

Jose (JPLAY)

I have listened to the free version and my wife even commented how good the system sounded the other night and I didn’t tell her I had changed anything! So I know it already makes a meaningful difference. When I get more free time I am going to read more about your NimitraS and it’s power supply. I suspect that may be a very good solution for my needs.

Ted Sidlauskas

Thanks Keetakawee,

The new build of WS2019, AO 3.0 and Fidelizer 8.4 is sounding brilliant.

Thanks for all you work.

Paul Stevens (AudiophileOptimizer)

Hello,

I’m very impressed what the software (especially Pro version) can do in an already pretty good sounding 30K+ € high end system.

First impressions during a couple of hours of listening Plus vs Pro :

Greater detail and darker more quiet background
Better image depth and somewhat more spacious atmosphere
Greater presence in vocals
Stronger midrange
Cleaner bass resolution and more “punch” without touching gain

Seems like the core isolation does some good things to further improve the clarity of music playback.

I used the Purist setting with Network Player (Hope this is right when using Tidal desktop application with MQA decoding on my PC)

All in all, Fidelizer is a superb tool to improve the total quality of playback through my PC and Windows and well worth the money.

Mikael Westerlund

It’s working now Keetakawee! My Pianoteq is performing much better than before! For me Fidelizer is super!

Thanks Jan

Jan Hartman

Hi Keetakawee. I just want to say that I am extremely happy with your product. What made even more happy was to find the cics mode in the profile.

Walter Rade (AudiophileOptimizer)

I’ve been using Fidelizer for years on Windows 10, but the combo of 8.4 + AO3 Ultimate in shell mode is easily the best I’ve ever heard. Thank you many times!

Ken (AudiophileOptimizer)

Hi, Keetakawee.

Your fantastic product is installed and I’m very happy with the result. Really impressive and very solid improvements in my SQ. Thanks a lot!

Best Regards,
NIvaldo

Nivaldo (JPLAY/AudiophileOptimizer)

I installed it yesterday and it works perfectly. Didn’t have much time to play with settings but the first I tryed sounded really nice. Unfortunately now I will be away from home for a week so I have to wait to I come back to find the right settings.

Piotr Stefanski (JPLAY)

Thanks so much!

I really appreciate your suggestions and help. After installing the pro version of Fiderlizer, and with the v1903 build, it sounds significantly better than my previous setup. I am also using AO Optimizer and Jplay. The sound is richer and more solid now.
Thanks for your good work!

Shovik Sengupta (JPLAY/Audiophile Optimizer)

This is the BEST improvement I have ever done!  WOW!  Thanks sooooooo  much!!

Anything Good

Keetakawee, your Fidelizer on this system brings really a huge improvement, much more I could appreciate on the old tablet. Sounds really great. Now I’ll spend the whole day to understand which processor priority policy I prefer. At the moment I find natural harmonics+Rich details the best for the music I listen to with Audirvana+uRendu+Chord Hugo2+LCD4.

Angelo Pichierri

Awesome, thanks! I could hear the difference that Fidelizer Plus so much so that I upgraded to Fidelizer Pro.
The results blew me away and gives a punchy new life to my Yamaha analogue stereo and lastly TV to line in.
Smooth digital sound analog lifelike presence. Never knew there was so much recorded detail that I was not hearing.

Headphone apps Atmos, Waves NX, with their HeadTracker Hardware, Steel Series 7 RF wireless with DTS Headphone 7.1 v2
surround sound, big room, music equalizer, no compression. Streaming music W10, Asus, Nvidia 1070x a bit of overclock.
ZoomF1 and Zoom H3-VR quad mic for no vst mixing and format recording to sd card. Headphone line out to stereo line in.

One year in now learning about mixing, binaural, ambisonic formats with 360 degree surround sound. I found immersive
presence but everything was lacking fidelity. Problem is solved by Fidelizer Pro. Good info on forums on audiofile.com.

Best success to you, Ketakawee Punpeng,

Dave Hamilton

Dear Keetakawee,

Thank you so much for refunding that money to me but you didn’t need to do that as I do love your software and think it is very good value for money. It is nice to still be able to purchase things without getting ripped off and I do thank you for that. I have installed your software and have been having an extended listen to it in fact the the first thing I started was a harpsicord recording of Purcell harpsicord suites and what a delight it was with your new software in place. Hapsicords ha a lot of treble energy which can be very tiresome with extended listening but I have to say that it was really well behaved and I listened to the whole file with no fatigue so it will be very welcome to me . I hope to get a more balanced listening test soon and I shall tell you how I am getting on. Once again thanks again and I’ll be in touch again soon.

Kind regards,
Jim Conn.

Jim Conn

Thank you Keetakawee. It’s now working again- After your description of key function I acknowledge I changed from WiFi to wired LAN.

You achievements with Fidelizer is nothing than astonishing. Big bow and for your product and your dedicated customer support. It will pay off one day. Thanks!

Best regards
Guy

Guy Portnoff

Excellent K!

I freaking love your Fidelizer. It hugely improved my YouTube streaming on Windows PC and HQPlayer !! Less laggy even though when booted up, Fidelizer running and it took a few seconds than I used to.

The sound improvements here is pretty good, very Similar to DX200 Purist ROM, only that it is still Neutral where DX200 is a tad warmer (which is great too as DX200 has always been boring and lifeless) ! This is just Awesome !

I paid for your Pro version blindly as I witnessed how great the DX200 performed. Sure enough I was not disappointed !

In fact, I had always been desiring and craving for something that can stream YouTube better, and this is spot on! Only this feature is worth the money, let alone other improvements from HQPlayer app and so on.

Thanks K
Vince

Whitigir

Hi Keetakawee,

I just wanted to say thank you for this wonderful software! I started out just using one installation on the “streamer/endpoint” PC in my listening room. I upconvert all files to DSD512 to feed a T+A DAC 8 DSD. Since I started doing this conversion, and while I have a powerful server, other processes and programs would sometimes interfere and cause skipping and stuttering during playback. After installing Fidelizer Pro on my server today, I can attest that I haven’t had a SINGLE hiccup of skipping, stuttering, etc.! Track switching is faster now as well. And I got ANOTHER little boost in sound quality.

So happy that my setup is completely headache free now, and sounding better than ever.

Thanks again,

Eric McDade

Eric McDade

Dear Keetakawee,

The result of the Upgrade from Fidelizer 7.7 to 8.0 is a much better sound in my system. The separation of the instruments is better, the voices are clearer and the bass is stronger. There is no more harshness in the high tones. The music is more live than before. Great work

Thank you so much,
Thomas Haupt

Thomas Haupt

Thank you. I think the sounding became better: more detalized and more clear. Thank you.

Jurijus Klebanovas

The purist mode for a machine doing sound processing sounds really good on my server although it seems to inhibit my ability to log in remotely to JRIVER with webgizmo…I have a work around for this so it isn’t a big deal, the extra clarity with the 8.0 upgrade is certainly worth it!

Thank you
Martin Reynolds

Martin Reynolds

Hi Keetakawee,

I want to Tell you that Fidelizer 8 for me is the biggest improvdment in sound since i use fidelizer. Its wonderfull. Hope you will go further in the future ???. Do you use a Devialet Expert for yourself?

Best regards and a happy 2018! Eric

Eric Pell

Hello, what did you guys do in version 8.2 pro? It took my PC to a whole new level in fidelity. Thank you!

Mike

Michael Sadighpour

Hi,

Fidelizer 8 is working without any problems and the sound is impressive. I have read the reviews on Nimitra and will contact you later in the year about purchasing a unit.

Suruj

Suruj

It all works fine now. Thanks for your support. The sound is amazing. Now I stiil have to figure out what settings are best for te combination “Fidelizer purist/Jplay extreme hybrid”

Thanks, best regards an a happy New year

Jos Van Osta

Greetings!

Fidelizer 8.0 is wonderful! The new interface is brilliant and the configuration is very simple. Further, as a passionate JPLAY user the Processor priority setting for JPLAY is greatly appreciated. Though each of these settings has a very obvious impact on audio quality!

I’m using the wonderful sounding Album Player Mini with full file buffering enabled, 0.5 sec period timer, ASIO output, to JPLAY (KS output, ULTRAStream, Throttling: OFF, Hibernate: OFF) and Fidelizer 8.0 has proved more stable with this audio player on a Win10 system.

Please try the audio player as it’s free to use and provides superior sound to Hysolid, JRiver, Foobar2k and numerous others that I have tried. Albums are selected from within the program by right clicking on the drop down bar to set a target folder. It helps if all the files within the folder are of the same sampling rate and bit depth.

http://vv.uka.ru/aplayer_eng.html

Thanks for all your great work with Fidelizer. The sound quality is second to none!

Cheers,
David Dzurak

David Dzurak

Thanks for all your hard work. So far all is working and sounding great, using the minimal setting.

Matt Blankenship

Even Chord Qutest is a gorgeous DAC, with Fidelizer Pro on my PC it sounds much, much natural. Even my cat feels the change. Again I have to express my gratitude, deep appreciation and respect for your great work.

Eduard-Catalin Tudor

Thank you – I have installed it and its running well, sounds good.

You have given me lots of options! How to set them. Can you advise please?

Jeff

Jeff Cosford

Hello,

My first impressions are very positive. The sound was changed in way, I like to.

Thanks
Tomek

Tomek

My wife (no interest in high end audio) made the comment about my system sounding exceptionally good today. She has never done that before. The only change since her last listen was the upgrade to Fidelizer v.8

Have a blessed New Year,

Joseph

Joseph

It sounds fantastic! Thank you, and have a Happy New Year!

Nathaniel Blake

Hi Keetakawee,

Thank you for the Christmas present. This critique is my Christmas present to you. 🙂

My system is as close to audiophile as I can get on a budget. I built the computer using a motherboard which has a Realtek chip on it which can capably do 24 bit, 192,000 Hz. Having the DAC on the motherboard eliminates USB latency because the info is travelling at motherboard bus speed. Motherboard manufacturers have started using onboard chips with sound card performance due to the demands of average gamers these days and it’s a bonus for music lovers. JRiver ais my player app. I used foobar for a long time and one day decided to try JRiver on a whim. JRiver was able to bypass the Windows sound settings completely (which foobar was supposed to do and did not) and sounded better to me, so I thought it was worth the reasonable investment. I think when foobar was new it was comparable to JRiver in sound, but foobar does not get updated much, and I think JRiver has done a better job of keeping up with the times. With the free version of Fidelizer I didn’t hear any improvement with up-sampling in JRiver, but after upgrading to pro the up-sampling seems to do a little ‘smoothing’ of some of the harsher sounding mid frequencies at volume. Or maybe I’m just imagining it. 🙂

The signal is going by cable to my vintage Luxman LV 105u hybrid integrated tube amplifier with MOSFET output stage. This little darlin’ of mine is rated at 70 watts per channel, but has very high current capability, and can get much cleaner and lounder than other high end consumer amps which I have owned with much higher watts per channel ratings. I love reggae music amongst other genres, and just love the sound of the bass from this amp. More note than boom. The biggest investment was my large Mirage speakers, and not only are they very accurate and musical, but they do disappear at higher volume levels as the name implies. Other than the source, the whole system is vintage because I’m vintage too, and I keep us both well maintained.

Upon inital installation I chose Purist and Audio Player from the wizard, then looked at advanced settings to see your defaults for this setting. For daily PC use I will use less extreme settings but for serious listening I reboot with serious settings. I left networking on for serious listening breaks. I still have to do a test with that one final ‘no networking’ tweak. Do you think I’ll hear anything? After trying all the various combinations in the processor priority setting I find I agree with your preference for Long/Fixed as the processor priority setting. It was interesting though, that my self powered Polk Hampden ‘computer speakers’ seemed to benefit from the Long/Variable setting. They are however obviously not as accurate or muscular as the Mirages with the tube amp.

With the Mirages and the new version 8.0 I noticed even more clarity over the full frequency range. I heard even more distinct vocals, backup vocals, guitars, keyboards and horns, even when when things get musically busy and all were competing for midrange space. The bass was perhaps even a bit more well behaved than the previous version. The kick drum and bass guitar could each be heard even more distinctly while competing with each other for the woofers. At the high end cymbals, like everything else, sound like they’re in the room. The improved imaging from the pro versionis new improved, and is another reason I think your creation is well worth the money for anyone who imagines they have a fine ear for sound and music and a music system which can make good or better use of a cleaner source. Now I have to re-listen to my entire music collection.

Merry Christmas to you too.

Greg Hrysenko

Hi Keetakawee,

Thanks so much. I am testing it, right now. I use the Audiophile, Audio Render configuration. Setting the Processor Priority Policy to long/variable, makes the sound even sounding better. Amazing.

Thanks again! I cannot imagine my running my media server without Fidelizer anymore.

Kind regards, Laszlo

Laszlo Spoor

The only thing better than your customer service, is the improvements you get in sound quality. It’s always great re-listening to my whole music collection whenever there’s an update!

v 8.0 sounds smoother and more open. Very enjoyable, thanks

Kevin Giblin

Hi Keetakawee,

I’m still very happy with Fidalizer 8.0 and my configuration. Fidalizer 8.0 speeds up the whole system. There are no dropouts at 24/7, the sound is great and there has been any other problems so far.

You really did a good job, Kai

Kai Jahnel

Hi,
Sound is much better. Great work!
Regards
Jarek

Jarek

I’ve spent a few hours with Fidelizer Pro and I’d just like to say it’s the best money I think I’ve ever spent. The amount of detail I’m hearing is astounding. Thank you very much, my little system is really punching above its weight now.

Dom

Dom

Hi, Keetakawee
Received and running well.
Much improved in both fidelity and detail than ever, say much more closer to my CD player.
Working well with Roon and HQPlayer.
My Layla II reaches more of the power.

Thanks

truename

This works great, like a new player, love the options you have done great work keep it up

Dwayne Labossiere

Awesome, thanks! Sq is now close to perfect. I’m using now also ao. Fidelizer plus optimized sq of ao
Noticeably. Sound is now concert hall like or hard Rock stage – whatever you like.

Stefan

Stefan Leiber

Hi,

many thanks for your quick delivery and for making such a good product!

I spent some time last night (I live in Italy) listening on earphones and this morning connecting to my hifi setup.

Only one word: Incredible improvement also over Plus Version.
Everything more transparent, more focus and more Music!

Regards
Alessandro

Alessandro

Thank you so much! All right. It’s beautiful. The difference with the Plus version is very large. Good job. I’m really very very happy!

Francesco Vecchio

P.S. : I will recommend Fidelizer to all my friends.

Francesco Vecchio

Thank you – I did a bit of listening last night and again this morning. It sounds tremendous.  – almost unbelievable difference when I was using the Purist/Audio Player settings.

Many thanks for your time in your responses – I do appreciate it very much

Best Regards
Dean Mullin

Dean Mullin

Hello lucifiar:

You”ll have to excuse me I know your real name starts with a K, but I don’t know how to spell it. Having said that This new 7.10 fidelizer program is fantastic best so far My system justs sings. Can it get any better? Could enlighten me a bit on these other software programs are they like fidelzer or a completely different animal. Keep up the excellent work.

Thanks,
Brian

Brian Attenborough

Thanks Keetakawee, it’s sounding better than ever !

Alistair

Alistair

I’m realy happy… After installing easily Fidelizer Pro one hour ago I’m wondering how it’s possible. I’m 65 but I’ve never heard as high quality of music. And it came by a USB!
You can be proud of your product it’s great!
Thank you so
Janos

Janos

Thank you very much. I will let you know after some serious listening. So far so good. I am impressed.

Joseph J

Thanks Keetakawee,

When I was thinking the sound could not get any better, it just did.
Many thanks.

Regards
Kevin

Kevin

I recently upgraded to 7.10 on a WIN 7 older i7 processor using Roon & Tidal into an Exogal Comet Plus running balanced into RSA Apache with the Sparkos Labs SS3601 opamps listening with the Utopia headphones with WyWires balanced Platinum. I was pretty surprised with the change and just enjoyed everything.

Steve McCoin

I have never made a comparison of with/without Fidelizer. There are a couple reasons for this. Fidelizer loads automatically and there is no legitimate switch to easily turn it on or off without uninstalling it, at least as I understand it, and I may be wrong.

Secondly, I am not some golden eared wizard who insists on the best equipment/software/source chain, and tests and compares all the elements so I know I have the best. I am an old gray haired curmudgeon who’s music is centred in North America/Britain during the 60s, 70s and 80s, and some older jazz and classical. I buy moderately high end gear and try and get the best from my gear without sitting around trying to pick the fly shit out of the pepper shaker. I chose to buy Fidelizer after doing some lengthy research. People I respect said positive things about it and I went with it. I am not going to test relentlessly or agonize over the level of improvement. What I do know is when I come home and put my headphones on and turn up some well recorded and engineered music, my smile is very big, and it stays with me a long while. I am happy. Often when I am happy, I don’t care to analyze why, I just enjoy it.

Just for reference, I operate at home (desktop computer) Flac Files → JRiver → Fidelizer → NAD DAC → Woo Audio WA2 with upgraded tubes → Beyerdynamic T1.2 Headphones → Blissful Smile I use good, but not ridiculously expensive cables.

I use the laptop for playing music at the cottage I frequent a number of times through the summer. Flac Files → JRiver → Fidelizer → Audioquest Jitterbug → Micca Origen DAC/ HP Amp → Beyer T1s OR Marshall Killburn Speaker.

Thanks again.

Gary Weber

I must say, this is really an improvement. I run an Altec A7 bi-amplified horn system with single ended triode amplifiers. It is extremely revealing. I listen to classical/opera. Solo voice is an extreme test.
Your software made an improvement that is startling. I’m very impressed. I will move on to your best software package shortly.

Thank you so much.
Best wishes.
Les

Les

It sounds so fucking good that if it had came with reasonable duration not limited by hardware upgrades it would be a “no brainer” (which coincidentally also describes people who implemented it) for any audiophile.

Only after i run fidelizer (free) for the first time i realized how tired the sound made me. I was wondering in what other dimensions software could possibly make further improvement to SQ, then i got surprised again mainly because i was expecting something else.

Jakub Mazur

Hallo,

it works perfectly !! double thumbs up !!

Thank you

Best regards – Bernhard

Bernhard

Hello
My fidelizer Pro Works perfectly. The sound is wonderfull of naturel.I use Jplay in Dual setUp and i’am going to buy a second licence.
Thank you very very much for this program.

Patrick Tailliet

Keetakawee,

I use Fidelizer 7.9 with Purist/Streamer setting on my JPLAY Control PC and Norton Internet Security turned off. This gives a very natural analog sound. I have an Uptone ISO REGEN with battery power on my DAC USB input which improves the sound even further.

Regards,
Geoff

Geoff

Hi Keetakawee,

Fidelizer Pro works great for me. In the first place, I do not want to fiddle with computer settings and this product is easy to use. Tested it in my office (free version) and in my main system and the improvement in SQ was obvious in both. I even tested it with a coworker, (who is not an “audiophile”) and he was able to spot the difference in no time. Not easy to explain, but for him (and for me) music sounded less “confused” and better defined. I heard improved separation between instruments, a blacker background, and deeper bass rendition.

Kind regards,
Juan

JPS

Listened to the Pro version of the software over the weekend. For right around $350 my DIY music player sounds unbelievably good. Thanks for the software that provides the finishing touch.

NWCgrad

Hello! Please accept my gratitude and delight! Your product is great! I again listen to my collection of audio recordings and it is a delight! I wish You great success and new developments ! Vitaly Kanischev.

Vitaly Kanischev

Awesome awesome awesome!!! No more annoying drop outs during playback. You just saved me from having to spend a ton of $$$ on a dedicated server. Thanks!

Mike Gadoury

Hi,

I’ve done some tests yesterday and it took only a few minutes to realize that Fidelizer works great! I’m running JPlay&Streamer on a Zotac ZBox Intel i3 machine with W10. It feeds a Benchmark DAC2 via USB across an iFi USB Power device. Music files are on a NAS.

The improvements are everywhere. In a few words I would call it more crisp, clear, and transparent. All the attributes that audiophiles love 🙂 The amount of change is about the same as or even higher than one gets from changing speaker cables from dirt cheap to good ones.

And the upshot is that a fidelized W10 now sounds better than W2012 server. This makes my life easier.

Cheers!

Hermann Schmidt

Absolutely fantastic thank you

Earl Helm

Fidelizer has definitely made my system sound much more three-dimensional. I don’t know what it is but music played back through my DAC is much more palpable now.

James Holland

Hi Again Dear Keetakawee, I need to say is an honor to say is Amazing Huge Lovely terrific improve when use Fidelizer Plus and really my jaw take the floor, really need to ask you if the pro improve over Plus.

Thanks for your help to down load my software, really thanks a lot.

Daniel Lafarga

Hi Keetakawee,

Very satisfied with the result of Fidelizer/Win7/Asus i7 into Auralic Vega/Exact. It helped with the dropouts (non-existent now) and the sound is marginally cleaner in Flac and visibly more “solid” in DSD (in my system and for my ears). My view is that, besides the main components and interconnects that impart most of the sound characteristics, small tweaks in which I include power cords, power conditioners, etc. and also software such as Fidelizer are minor unavoidable expenses that in small steps improve SQ.

Thanks,
Eurico

Eurico

Thanks for the update. I love your program. It has been perfect for my server. What a great idea to maximize the value of what one wants to do with Windows.

William Koch

Hi Keetakawee,

Just want to let you know, the effect is AMAZING. Thank you and I think that’s money well spent on my side

Thanks!
Peter

Peter Hsieh

I’ve installed the program and everything appears to work as it should. I listened attentively to my standard comparison recordings for several hours with another Fidelizer owner and we both saw improvements.

Dominique Paré

Dominique Pare

It seems to make good work!
More air and sweetness. The sound level seems to be lower than before, but i think this is in my mind, because of the softer sound.

I think my setup can be optimized deeper, but this is a good step

Thanks a lot
Regards
Romain

Romain Usai

Hi,
All’s in perfect order.
Similarly as before, the SQ has gained in the volume and quality of bass, better separation of instruments, clarity and depth.
Thanks a lot.
Best Regards.
Irek

Ireneusz Bakowski

Hi Keetakawee,

Fidelizer is great. The dynamics and musicality have improved significantly. Especially combined with Process Lasso.
Thanks for the good work.

Regards,
Sander

Sander

Hello Keetakawee!

I am actually quite happy with the performance so far.

Kind regards,
Stiliyan

Stiliyan

hi window X
i am very happy with fidelizer pro.
thank-you for this great app.

KOHEI YAMAMOTO

Kohei Yamamoto (JPLAY)

Thank you brother the sound was very good.

Daniel Rodrigues Leal

Great, thank you. I’ve purchased the Plus version and it sounds great so far!

Cameron Fraser

Ok, so far the usual :
Quieter backgrounds, a more ‘dramatic’ presentation. Dynamics.

Haven’t got full benefit from it yet, PC is finishing off some video conversions, and lengthy defrag

Sys: JRiver, Jplay, Empirical OffRamp5 with robust powersupply,
EE Minimax Plus DAC, Audible illusions Mod3 pre, VTL monoblocks, Martin Logan Ethos, Synergistic Rsrch cables,
Analog too: WTL, BenzMicro etc
Tubetraps, erc

Doug Brasier (JPLAY)

Hi,

I’m sitting right now listening. It is unbelieveable how moch better Server 2016 sounds. Especially orchestral music.

Regards,
Harry

Harry (JPLAY/Audiophile Optimizer)

I received your product, installed it and everything worked fine. I use it on a small Zotac nano – actually the first one they put out about five years ago. I use Win 10 Pro and HQPlayer’s NAA.

The listening experience is phantastic, especially DSD records shine with a deep sound stage and a precise stereo resolution that I have never heard before.

Thank you for a great product,

Rudolf

Rudolf Leibbrand

Hallo Keetakawee,

thank you for delivering so quick.

here I want to give you positive feedback.
I installed Fidelizer Pro without problems. I am very satisfied with the sound.
(Before I experimented with the FREE version)

My sytem is:
Dual core pentium Desktop PC (only for audio), Win7 Ultimate
USB: M2tech John Kenny with batterie P.S.
DAC: Altmann with batterie P.S. and special jitterfilter.

I am running the Filelizer in „Purist“ mode. Media player (with no network).
Media Player is mostly Jplay, sometimes Foobar.

Some people tell win10 is the way to go, some people tell win10 sounds bad.
Should I upgrad from win7 to win10?
I think when I go via USB, M2Tech, and kernel streaming, there will be no big differnce.
I dont want to make a complete new OS installation, if I would upgrad than I would overwrite Win7.

What do you think?

Thank you once more for you first class piece of work.

Best regards
Thomas Mertens
Berlin, Germany

Thomas Mertens

Thanks so much for developing this amazing product! Very much appreciated ? I really like and trust your software concept. It makes a whole lot of sense.

I successfully installed it on my HTPC and I’m running it as Audiophile / Media Center. First listening tests seem to reveal a cleaner sound but I’ll do more testing soon. I’m running active Adam Column MK3 speakers, Audiolab M-DAC, XLR interconnects, AsRock Vision HT HTPC. Nothing special but it sounds great for me.

Best regards,
Felix

Felix Schumpelick

Dear Keetakawee,

I installed your software and everything works properly, the sound is very amazing in “presence” and deep….
However, I noticed that although UAC control on my Windows 10 Home (version 1703, build 15063.332) is disabled, “Fidelizer Pro” does not disable Windows Defender, but only Windows Firewall.
Even if (maybe) you’ll smile for this, I’ll tell you that I’m not (only) an audiophile, but a Dj… although very careful to music and playback quality:
for example I love “Denon Dj” devices rather than Pioneer Dj … my PA System is “Electro-Voice” EKX series and my near-field monitors are “KRK” VXT4 …
I would be happy if you could devote some tweeks to my “world”.
I use as mixing software “Serato Dj”, my controller /standalone mixer is a Denon DJ MC6000MK2 and my quad-core PC is an Asus Sonic Master K550JF.
I attach a file where you will find some suggestions by “Serato” software factory for PC optimization… you’ll check this and, maybe, you’ll can find something extra…
Looking forward to reading you,

best regards,
Alessandro

Alessandro Cerquetelli

Dear Keetakawee,

Thank you for your product, which is working wonders indeed. Will have some questiones soon. Thank you very much again for now.

Best Regards.
Irek

Irek

Hi Keetakawee,

I am running fidelizer plus in win server 2016 along with AO optimizer and the final result exceeded my expectations! Fidelizer plus gave to my system a vivid and truthful character, more volume and weight in the lower end, highs without grain, more air and space among the instruments and above all a little touch to transform the bit perfect play back to a highly emotional experience! Thank you for all these… In case I want to upgrade to pro, do I have to generate a new key or will I use the same??

My best regards,
Nikos

Nikos (Audiophile Optimizer)

Everything is working thank you. Is it my imagination or does the digital now sounds more analog like!

Jeffrey Miller

Again thank you, I just listen to music on headphones, super sound with your program

Michael Schonknecht

Hello Keetakawee,

I had to email you to say a big thanks after spending a few hours listening with only Fidelizer pro on the Audio PC it is without doubt he best my music setup has sounded.

The sound heard now is more and very realistic, I could settle for this sound now ? I have had the best listening experience ever with my system. The change bought by Fidelizer along with the already installed Audio optimiser and JPLAYStreamer is fantastic.

This month I expect Audio Phil will release 2.20 beta 5 which could very well enhance things further also PS Audio has a new firmware to be released in the next few weeks. Also I should have received my next copy of Fidelizer Pro for the Control PC I’m in audio heaven now so how much more sound can be still waiting to be heard.

I really did not think computer Audio could be this good

Thanks So much

Regards,
John

John Ofsoski (JPLAY/Audiophile Optimizer)

Hi Keetakawee,

I been enjoying the Plus and the difference between free and Plus is day and night!

Thanks,
David

David Chiang

Hi Keetakawee, thought I’d drop a few words on my Fidelizer Pro experience, for what it’s worth. I just replaced a 2002 HTPC with a laptop for the internet and a Hollis Audio Labs MS-3 fanless mini-pc music server with Windows 10. I’m using JRiver for my 15,000+ album hard drive library. Before I used Asio4all with Windows XP but now I’m able to use WASAPI for my Empirical Off-Ramp 3 USB Converter. I also use an Uptone Audio Regen for regenerating the USB signal ahead of the Off-Ramp Converter.

My new MS-3 dedicated music sever was a huge step over my old “do it all” HTPC and with free Fidelizer, i was already in audio heaven. But all my friends tell me either get the Fidelizer Pro or the Audiophile Optimizer. Well because I’m not all that efficient with a PC and I didn’t want to mess with things that are over my head, the Fidelizer Pro was an easy choice for me. 12 straight hours of music listening nervosa later, I’m taking a break to write this up as I can’t listen and being able to gather my thoughts to write also. The music is so enjoyable that it demands your complete attention with no distractions. While I really enjoyed your free Fidelizer purist mode, the Fidelizer Pro Purist mode is a completely different beast. I can go to the other side of the house and the clarity gains in the music are still quite evident.

Frankly Keetakawee, I can’t see where you’d ever be able to improve on what you already have here but please, feel free to try. hahahahaha Thanks for providing audiophiles with such an awesome pc audio product that’s so consumer friendly.

Cheers,
Robin

Robin Bombard

Lucifar I’ve had a conversion — Fidelizer free definitely makes my music sound better. It’s the audiophile thing, the sound of the music.

But the PLUS! It makes me enjoy the music for itself, never mind the audiophile thing.

Peter Allen

Dear Keetakawee Punpeng

Thank you very much for your excellent product “Fidelizer Pro” you sent to me. After downloading the file, I immediately installed it on my audio PC, part of my dual PC audio system. It has worked miraculously and I have found the sound quality of my music system improved drastically. It is far beyond what I expected. Since I started my endeavor of PC-based audiophile journey, I have now come to its near perfection. Thanks to your state of the art product, I have obtained the most precious sound reproducing system I have ever imagined with such as a low budget. But… you know, human desire is never ending. Now I feel my craving for even higher level of perfection welling up in me. I want Fidelizer Pro to be installed on my Control PC, too.

Thank you very much in advance.
Tadami Yamaguchi

Yamaguchi Tadami (JPLAY)

I’ve been very happy with the improvement in sound quality that Fidelizer has made to my Logitech Media Server based system since buying it last week. It’s improved clarity and detail through my Logitech Touch player which sounds more “relaxed” playing music now.

Regards,
Gordon

Gordon Chalmers

Sounds really good streaming over Tidal HiFi.  I was skeptical, but it is definitely an improvement; smoother, more transparent and analog sounding.  Listening through these, and they’ve never sounded better.  Don’t know how you did it, but great product.

Aaron Paolucci

Hello, I’m sorry, I do not speak English so I can describe how wonderful your program is.
Congratulations on your work.

strong hug.

Silas Guimaraes

Hi, thanks a lot for your hard work! The results are pretty impressive! Don’t stop improving the quality of pc sound! With much appreciation,Igor.

Tyukov Igor

Awesome. Everything works.)))

Included Nelly Furtado-2017-The Ride Tap Dancing and not learned a thing appeared pensive beautiful floating bass in chorus.

Cool. The sound became much better.

Thanks very

Shepeta Sergey

Many thanks for your quick and efficient service.

Listening is as happy as possible. 🙂

Regards,
Claude

Claude Waelti

I cried when I first heard it. This is so close to LP fidelity. I’m using your software on my own custom build paired with a benchmark dac2 and the focal elear headphones. Just amazing!

Dennis Maddock

Many thanks, everything works much better, now I can enjoy the music without worrying, everything is in place and the H.D. Sound analog. You are a genius, thank you very much again.

Sincerely,
Carlos Óptico

Carlos Optico

Thanks Keetakawee, fidelizer works again, great as always-i missed it a lot these few days! Didn`t know i was addicted so far, now i know!

regards G.

Gottfried Hoeglinger

Thank you Keetakawee. It sounds great! Been listening for a few hours now. Thanks for also putting up with me doing things backwards.

Clyde Little

After installing Fidelizer Pro on my system, I was pleasantly surprised. SQ has improved and most important, I could play now ultra/700Hz/0.01sec with no interruption. Before installing it, there was no way to achieve that without interruption. 10/11sec before the end of each song it just stops. I don’t really know what has happened (miracle maybe) but now I can fully enjoy the ultimate settings without any interruption, no matter what format is playing (DSD256 or hires or even mp3). Thank you Keetakawee!

Milen Marinov (JPLAY)

Sounds Great!

Nana Kwaku Ampong

Hi Keetakawee,

Upgrading Fidelizer to Fidelizer Pro on Control PC of Jplay has apparent impact on sound, more depth, more air, and more contrast. I think it is an essential software for PC audio, and one of the most cost-effective investment. It is worth installing Fidelizer Pro on both Control and Audio PCs for Jplay dual setting.

Regards,

Hiroshi Ichino

Hiroshi Ichino (JPLAY)

Hi,

I run my tested and I can approve that it all sounds great and the upgrade from the free version is much noted. I found the purist / player with no network worked best for me.

Nir Zion

Sounds Amazing on my htpc output spdif to my Marantz pre-pro from my Sound blaster x-Fi fatality pro, made a big diffence is the details. Thanks you so much for the product and thank you ahead of time for listening to my questions.

Regards,
Jeffrey Jensen

Jeffrey Jensen

Hi,

Though I haven’t dug myself into the various options offered by Fidelizer Pro,
I am amazed how huge improvement even Consumer level can achieve.

I am simply not able to accomplish my usual listening tests because
whatever I am listening to, I keep not wanting to change that song, just keep listening to it.
The clarity and presence is so prominent even with my Genius PC speakers.
Next weekend I am going to the countryside where my real audiophile system is
in an acoustically treated listening room. I can hardly wait.

Thanks a lot and congratulations for your product,
it deserves the highest rankings.

Gyula Szekeres

Hello Keetakawee,
tried out Fidelizer Pro the last hours in Purist mode. Realy fine music reproduction. The best I heard ever on my system. Read in the last 2 years many positiv Reviews and they described all changes in audiophile way very well. I can verify everything.
Now I will advise my brother to buy Fildelizer also, because I had made him the same Audiocomputer like me.

Alt last here is my Computer-Hifi-System. If you have any more recommendations to tune my system I will be very pleased.

All the best
Manfred

Manfred Röher

Love the software, it makes such a difference to my listening.

Best,
Jim Kane

Jim Kane

Hi,
It works very well. Maybe better than expected 🙂
Sound quality is improved, silence where to be, better definition of soundstage as far as I can judge.

My setup:
Windows 10 Home, dedicated pc with Intel i3, 16GB of RAM, SSD, passively cooled (no fans), external powersupply.
Preferrably using JRiver Mediacenter 20 (also using VLC for some video playback). ASIO, loading decoded file into memory.
DSD files downsampled by JRiver ”on the fly” to PCM 176.4. PCM up to 192 without changes.
All music (some 250 000 tracks) and video stored on either of three NAS in local wired network.
Have tried DNLA control from other PC using JRiver Mediacenter, nice but not neccessary.
Musical Fidelity M6Dac, Mark Levinson 320S preamp, two Abrahamsen V4.0 poweramps bridged into monoblock service, Canton Reference 2.2 DC loudspeakers. (I also play vinyls but that is another story).

Regards
Jan

Jan Nilsson

Thanks a lot. It´s running and sounding really fine in combination with Jplay and Qobuz.

Regards, Lars

Lars Sorensen (JPLAY)

Hello there! Thanks for your work. This small software is really great! )) The most I like in pro version is autorun on Windows startup. Everything works fine: no lags or hardware conflicts or any other issues. I use netbook with 1,33GHz Intel Atom on Windows 8.1 then foobar and usb-dac.

Romin Roman

Very great Fidelizer Plus..regards from Firenze Italy 🙂

Carl Sery

Hi,

I have compared my system with and without fidelizer. I note that there seems to be a more three dimensional image, cleaner, and correct me if I am wrong: Almost seems like I can turn the vomume down and still hear the details. Maybe it is a lack of noise.

Thanks

Ronald Black Baker

Hi Keetakawee,

Thank you for a great software. I have installed Fidelizer to my Audio PC for JPLAY, and working great, the effect is more significant than changing Windows 2012 R2 OS to Core mode.

This time I am going to install Fidelizer to my Control PC. Hope it will impact more on sound quality. I’m really enjoying music more with Fidelizer. Thank you and keep on good work!

Hiroshi Ichino (JPLAY/Audiophile Optimizer)

Hi Lucifiar,

Thanks for the great product; I’m very impressed with the improvement it’s made (and even more surprised!) at the impact it’s had on the SQ of my system (especially Purist mode).

Martin

Martin Johnson

Hi Keetakawee,

I have no idea how effective competing software offerings are, but your Fidelizer Pro software program is seriously effective and whose improvements are patently real. I mean, enjoyably real improvements that are not subtle at all. With the free version of Fidelizer, there were noticeable improvements though mostly subtle in nature. The improvements with JRiver were quite enjoyable. Listening to Tidal, however, was not quite as involving. Performance parameters such as transient response, dynamic impact and musical involvement felt slightly uninvolving.

After upgrading to Fidelizer Pro, now listening to Tidal has become quite enjoyable. Now, instead of sounding soft, Tidal sounds satisfyingly dynamic, impactful, and possessing life-like transient detail. JRiver is noticeably more involving and performing at a level I did not think it could reach. Music from Tidal and JRiver are so much closer to sounding like my CDs being played on a high-end transport, like on a CEC or Esoteric, that I find my listening sessions to last much longer.

My fellow audiophile friends have also been keen to pick up on these improvements. Other than going to a NOS DAC, this has been the biggest sonic improvement to my system. Fidelizer Pro is crazy good and for only $69. That’s a serious steal.

Regards,
Michael Wright

Michael Wright

Hi Keetakawee,

I wanted to give a testimony of your Fidelizer PRO software version 7.6

What I hear is a more natural, holographic, 3D-layered presentation.

A lower noise floor, noticeable increase in focus and soundstaging, and a warmer, less analytical presentation.

A bargain for the cost of Fidelizer PRO! BRAVO! Purist setting used and machine configuration: Audio Render.

Sincerely,
Randy Peterson
(JPlay, Audiophile Optimizer, Fidelizer PRO, Windows Server 2016 OS, 10 channel active crossover setup with Schiit Yggdrasil DAC, 4 Schiit Gungnir multibit DACs, MiniDSP active digital crossovers, custom open-baffle 2-channel speakers)

Randy Peterson (JPLAY/Audiophile Optimizer)

Thanks, Keetakawee – I was able to successfully update to the Fidelizer Pro. The music is really sounding amazing, thanks very much.

Thanks for a great product.

Regards,
Neal

Neal Stevens

HI , I just tried HQplayer with purist level and audioplayer option , it sounds very detailed and much better than jplay+foobar.

With HQP , Fidelizer really improve the SQ without side effect.

Mark Chang (JPLAY)

This helps me improve my source PC so much it will save me money from other potentially expensive downstream experimentation with different hardware, just to get the sound that I want 🙂 Dynamic range, instrument air, details and imaging have improved! It is noticeable even when I already have USB reclocker/regenerator & LPS in place.

Benson Ang Zhe Heng

Thank you! Everything is working great so far and sounds fantastic!

Benjamin

Benjamin Gold

Hi
Just thought I would drop a email and say a big thank you for Fidelizer Pro.
I use it with Foobar2000, Process Lasso and Jplay on a stand alone Windows 10 PC. My DAC being a J Kenny Ciunas.
I had used the Free Version of Fidelizer, and l can happily report than Fidelizer Pro gives a further gain in performance.
Put simply, this is the best set up, l have had period.

Kind Regards
Damien Read

Damien Read (JPLAY)

Hello Windows X,

Thank you for the new version. I am really impressed with the difference in sound while using Fidelizer.

Thank you,
Anish

Anish Mathew

Thank you very much, the music took on detail and cleanliness. Played by Win 8.1> JRiver 22> ifi IDSD Nano> Ultrasone HFI-780. Files 24/96 and more. I regard good job.

Tomasz Grudzinski

Hi,

Thanks for sending, sounds fantastic, I love it!

Thanks!

Eric Pouliot

Great program! I love what it does to the sound.

Best regards,
Johannes

Johannes Rickert

I bought the Fidelizer software recently and have to say it definitely makes a difference.
I also found Keetakawee very helpful when I was setting it up.
All questions were answered very promptly.
Tony

Tony McEvoy

I am really loving your software. I really made my system sound alive.

Thanks RWong

Robert Wong

Keetakawee,
I have been enjoying your program. Thanks!

Bob

Bob McPherson

Thanks for the file. Great Sound!!! I’m using Tidal streaming on a dedicated server and ASIO4ALL and Virtual Cable as per your suggestion in manual.

Best Regards,
Rosario

Rosario Capo

Dear sir good day

After a few days of listening to my new configuration, I am happy to inform you that Fidelizer Pro is doing a very good job at optimizing stuff. The sound quality improvement is more than subtle.

Mr. Phellipe Wattel, the CEO and creator of the software Musichi suite introduced me to your program during High-End Show 2016 held in Athens two months ago and I am very pleased and happy with his suggestion.

Thank you and looking forward to future updates of the program.

Kind Regards,
Sideris Fragoulis

Fragoulis Sideris

Hi, Keetakawee

Fantastic your software! I use it precisely with a Copland Dac-215.

Thank you very much

Best regards
Luca.

Luca Budel

Thanks for a great product! It works really well in audiophile/renderer mode, together with Roon-Jplay-Ifi-Lyngdorf2170 🙂

Henrik Broman (JPLAY)

Tx Man, Difference is night and day

Chirantha Kariyawasan

Hi,

There’s been some debate as to the effectiveness and even need to improve the computer streaming into the microRendu. Many believe what happens to the stream before the microRendu is purified by going through the microRendu itself. Thus the theory there is no need for upgraded computers or software to optimize your computer such as WSY2K12v2, AudiophileOptimizer, Fidelizer, etc.

All I can say is either my ears are defective or I’m a major victim of psychoacoustics.
NOT!
Each upgrade to my PC and Server, like linear power supplies, custom SATA cables, power cords, etc., can be heard through the microRendu.

As for software optimizations, the Sonore microRendu and Ultracap LPS-1 easily resolve and reveal the improvements they bring to the table.

Switch from Windows 8 or 10 to WSY2K12v2 (Windows Server 2012 v2), and you’ll easily hear the difference. More blackness, better spatial cues, better defined bass, a significant improvement in every audiophile term. Add Audiophil’s AudiophileOptimizer (It now works with Windows 10 and WSY2K12v2.) and place your system in minimal server or core mode and your listening experience will be in for a thrill.

I’ve recently upgraded to Fidelizer Pro. I’d used the free version for several months. Fidelizer Trial version really makes quite a difference by itself. Fidelizer Trial improves the musicality of your system. It’s very noticeable even when used by itself or with AudiophileOptimizer. The easiest way to hear the difference is not to activate the software after it’s been installed for a while. If you’re not careful you’ll be tempted to think something is broken in your system. Then, “Aha, I forgot to use Fidelizer.” Soon your system will be “right” again once you activate it.

Ok all true. Use the above software and you’ll think you bought a new DAC.

But upgrade from Fidelizer to Fidelizer Pro, (about $60 USA) and you’ll think you splurged on a Lampizator Golden Gate. (Unless, that is, you already own one, and you’ll be even more amazed at what Fidelizer Pro does!)

In simple terms, the use of Fidelizer Pro is mesmerizing. It’s hard to leave your system because suddenly your system will possess that “real sound” you’ve been searching for. And yes, it’s clearly to be heard across the network and via the microRendu.

Liquidity is a term I’d use to describe what it’s done for my system. Percussive instruments like the piano and drums resonate with a rhythmic attack that wasn’t there before. Instruments and vocals appear out of a black space. The soundstage extends beyond the perimeter of your listening room both front to back and side to side.
I dare you to play “Acadie” or “Shine” by Daniel Lanois and try to move before the album is over.

My final word, if you’ve been using the Fidelizer free trial version for several months and haven’t upgraded to the Pro version, (like I did) for shame. The author of Fidelizer, Keetakawee, deserves your support for a job well done.

And one more time. The microRendu is a great piece of kit that can be further enhanced across the network by the use of Fidelizer Pro.

Steven G. Rowan

Steven Rowan (JPLAY/Audiophile Optimizer)

Keetakawee,

works perfect now 🙂 ; should have bought Fidelizer way earlier!

Kind regards,
Peter

Peter Haupt

Person in charge

I purchased Fidelizer two the other day. I use it in ControlPC+AudioPC+JPLAY. I like it with high-quality sound very much.

Yasushi Ichikawa

Yasushi Ichikawa (JPLAY)

Hi, finally is worth the effort, Fidelizer is rewarding, easy to use and also easy to notice the upgrade, when purist is awesome!.
Also I am done with Foobar, I have nothing against their app as a remote!
Only is need now, to install Asio drivers for video player, but this is for tomorrow.
I suppose purist mode, can’t play video, I will see soon.
I thought Fidelizer were more difficult to use, but I was wrong.
Cheers,

Jordi Iglesias

Dear Keetakawee

Thank you for your message. The software upgrade is fantastic! So I have never been able to enjoy music before! Thanks for the support!

Kind regards and a good week wishes
Andre

Andre Walther

Dear Keetakawee,

Thank you so much for your support here and for upgrarding me to the Pro.

All is working and I must say that’s an amazing improvement. I spend a lot on new cables and other hardware the past month and what a step forward it was to get your software in use at my pc. Foobar is just working so much better with more details and wider stage.

Norbert Emmerich

Hello

I’m playing well since using fidelizer, the scene is wider, more space between instruments and high / medium frequencies more refined, but my little English not allow me to write better.

I’m using a fanless PC reserved for the digital music, current OS windows 8.1 pro, intel core I5, 8Gb ram.

Thank you in advance
Carlo

Carlo Lasagna

Hi,

Thanks, it’s working fine on my new laptop. It makes a big improvement to the sound quality.

Regards,
Mark Wisniewski

Mark Wisniewski

Hello,

a big “Thank You“ to you.

To listen the music without Fidelizer is not good, because I know it from the old PC until he get broken.

Regards,
Dieter Jakobs

Dieter Jakobs

Thank you Keetakawee its great product and i’m really enjoying while hearing huge improvement in my system.

Best regards,
Cem Çelebioğlu

Cem Celebioglu

Just go throught the system then I uninstall the virus software and disable the windows defense. Then hola it works. And so far the result is ver amazing. Thanks for fast responding.

Thanks,
Buu Ly

Buu Ly

Hi Keetakawee,

Thank you for sending me the download link for my copy of Fidelizer Pro.
I downloaded the software and installed it into my AUDIO PC this morning without any problems and the product is running fine.
The result is pretty spectacular.
1. Instruments are clearer and more distinctly separated from each other.
2. The words that the singer is singing are clearer.
3. Some Singers “reverberate” their voice a bit when singing the last note. With Fidelizer this “reverberation” of the voice becomes more noticeable.
4. Wider and deeper soundstage
5. Overall sound doesn’t have that Digital ‘sharpness” to it any more, especially with KPOP and JPOP songs.
6. Interestingly, the PC seems to run faster.

I have been tweaking my Computer Audio setup for a few years. I am running JPLAY in a dual-PC Setup with MinimServer and Kazoo. O/S is Windows 8.0 for both Control and Audio PC’s.
I have been following Fidelizer for the past 2 years in the various forums. I considered it t be an “enhancement” for Computer Audio so I had been postponing the purchase all this time while I tweaked my PC’s.
After I installed Fidelizer Pro this morning in my Audio PC I realised that I made a big mistake. Fidelizer isn’t an “enhancement”. The results produced by it are so major that it actually needs to regarded as one of the “cornerstones” of building an Audio PC and should actually be compulsory to be installed at the very beginning of the build !

Anyway I have just put in an order for another copy of Fidelizer Pro – this time for my Control PC.

Thanks for producing such an amazing piece of Software !

Best regards,
Eugene

Eugene (JPLAY)

Hi,
I shouldn’t say this but it was the most well spemded 40 bucks I ever did in my system…
Well, the 100$ in the ODAC to, but 40 bucks is less.
But I’m worried about the purchase I’ve made because this seems work of the devil and I don’t want nothing with him.
Well, if we talk about audio…no. nothing. Excuse me.
I’m completely overwhelmed by the improvement and I doubt even you know the difference you have made in my sound.
I’m an open baffle guy and also a DIYer.
And in an OB system the effect is at least the double than in a traditional 2way system.
That’s it. I’m going to spread the good news as much as I can.
Bless you (if you’re not the devil…?)

Regards
Fernando Pereira

Fernando Pereira

I have installed the Fidelitzer Pro, everything functions easily.

Effect with Fidelizer Pro
Space picture broader and deeper
Resolution is better
All together very realistic reproduction.

thanks
Silvio

Silvio Jaeger

Thanks ? after hours of experiments I can confirm that statement, about the sound, well is like a I having a new audio system in my house it’s amazing what’s Fidelizer can do , good recordings gain a holografic signature we get involved by the music ,my electro ecstatic speakers love it and me to ? in ripping (safe mode and Purist on) the same thing ,wider stage the silents are “black” dinamic’s, a wel controlled bass and punching one , and about voices? Fantastic !!!! Smoth present holographic, hours have passed since I touch the foobar2000 play button for the first time with Fidelizer on and I’m still amazed ,now I have hours of ripping in front of me humpf ? well is for good cause LOL ?

Thank you, you for your great product , I’m a happy customer, last night I uninstall Fidelizer and try to listen some music to see if I was listening “suggest music effects” the experiment only last half hour the difference is huge, is like I was listening music in a kitchen radio, lifeless no holographic effect… no nothing !!!! Once you try Fidelizer you can’t go back , once again nice work my friend ?

For now is all, keep your good work , for me is ripping time LOL ? bye..

Joao Santos

Hello,
My name is Tom Shields I just purchased Fidelizer pro without even trying Fidelizer first. After I allowed it to do its thing I was blown away.

Thank you,
Tom S.

Tom Shields

Hi Keeta,
I have tried the Fidelizer for a week and i’m impressed for the improvement on all fronts. Great job.

Ciao
Andrea

Andrea Soresi

Hi,

Firstly I would like to say I have been using Fidelizer for some time now and moving into the pro version a short while back. It does everything you say to major sonic advantage. I run many audio systems both Windows and OS X based in my listening room.

Regards
John

P.S Keep the good work up.

John Endicott

Hello,
thanks for the update. Look forward installing the new version. I was really surprised about the results using the former one. It sounds better in contradiction to some comparisons to be found in the internet.

Thanks
Rolf

Rolf Schumacher

Hello,

Thank you for sending a new version of Fidelizer Pro to me.
Today I made it sure that this new version software runs correctly in my music PC.
Fidelizer brings me a lot of enjoyment in listening to music with its high quality PC optimizations.

Regards,
Shinagawa Takafumi

T.S. (from Japan)

Hi

Just thought I’d let you know that everything is working and I do think the audio has improved.

Running through a Chord 2qute dac it sounds fantastic but im still to make up my find on wasapi or asio ???

Thanks
Matt

Matthew Jones

Hi,
My congratulation for your program.
It works fine and the improvements are easily audible: mostly I have found a better bass articulation, more overall transparency, and a better depth of image.
Best regards,

Giulio Salvioni

Thank You, Keetakawee, installation was easy – the sound is absolutely great!
I use a simple Lenovo laptop/Windows10 connected via USB to my dac (modified Bow ZZ8 CD-player); internet-connection via WLAN (LAN would be possible too); I use Qobuz-Desktop to stream from Qobuz most of my listeningtime; highres files stored on the laptop I play via foobar sometimes/seldom.
The laptop is used for audio only. So I’m over here.

Stefan

Stefan Schulte

Just wanted to say the pro version takes everything to the next level, really worth the upgrade! ?

Marco Tam

Hi Keetakawee,

Still early days but my impressions so far has been very positive. The software works seamlessly and Windows has been stable so far. There is less digital glare in the sound, enhanced dynamics and micro detail but without affecting ‘musicality’ of the sound. Having said this, in my warm Unison Research S6 and Harbeth P3esr stereo system coupled by Duelund tinned copper DC16Ga speaker cables I felt the Fidelizer added almost too much texture to already rich midrange and mid-base. Switching to Purist level addressed this adding more air and exposing treble in the sound signature.

I use JRiver as a server and renderer within all in one PC at the moment and I don’t do any upsampling to DSD, etc. If any, I have a few SACD quality records that I downsample to 192khz (plus for movies JRiver would automatically down sample surround to 2.0 stereo)

PS If your Nimitra hardware is as good as Fidelizer I might give it a shot as I’m planning to separate audio from video in my system. That’s for the next year project though (hope you will add LPSU by then 🙂 )

Warm regards
Radek

Radek Matusewicz

Thank you for Your helping! It was very fast.
It’s running on my Audio PC. The sound is very good! ?

Thank you,
ákos sebestyén

Akos Sebestyen

Thank you.
Easy‎ installation. (I was a little worried).
Perfect,‎ clean, clear sound!

Best Regards from Spain.

Javier Martinez

Hi,

Listening and enjoying so far. Soundstage seems tighter and an occasional stutter with dsd I’ve been trying to diagnose seems fixed.

Thanks!

Alex Chao

Thank you so much. Your software is very wonderful. I’m using it with Karaoke Extreme and it sounds very great in my system. Thanks so much again.

Anan Duangbanyang

The sound is much much better with Fidelizer. Much more open and clearer. I’m pretty sure it is installed as it sounds so much better now.

Your software clearly and definitely improves recording quality.  A lot. Your software is superb even with someone like me installing it. It sounds so much better than my regular computer.

Jonathan

Jonathan Horwich

Hi Keetakawee,
All I can say is wow, I am in audio heaven. I cannot believe the difference between the free version and the Pro version, it is simply amazing, thank you so much for making Fidelizer Pro work so well. You are a genius.I wish you a long life and happiness.
Regards
Kevin Knight.

Kevin Knight

Hello Keetakawee,

this is just to let you know that it is working perfectly. My feeling is a clearer sound and a more precise scene construction.

Thank you.

Kind regards,
Andrea

Andrea Puggioli

hello,

Yes I tried it and it sounds great. Made the sound very clear and detailed. Also took out some of the bass so I had to add more bass on the amplifier. It was strange. But I like it that way.

Katherine Williams

Keetakawee,

I just wanted to touch base to let you know that my Pro install went perfectly and music is sounding better than ever (Devialet + AIR 3 beta + RoonServer). I set it up with the Network Render profile.

Mike

Michael Connelly

Thank you, Keetakawee,

The first results are very good altough I need to do some finetuning (no easy access to the NAS at the moment). I will let you know. I already hear increased focus and better placement compared to the free version which was an improvement already.

Unbelieveable this is possible by managing priorities in the os. You must be really knowing what you are doing…

Thanks for the intervention and keep up the good work!

Cheers,
Jacko

Jacko Woutersen

This is a report of our first experience with Fidelizer.

I had heard of a few optimizer programs designed to improve computer audio sound, but I was sceptical. After looking around on the web I found an interesting product called Fidelizer. I decided to give it a try for several reasons; it had good reviews, the creator was very active in support of his product, and there was a free version.

It sat on my Windows 10 computer while I attended to other things. I finally got to install it and the sound quality into my Devialet 200 DAC/amp was seemed improved when I was using Devialet’s Air app to stream via Ethernet. However this happy state of affairs did not last long enough to make any conclusions about Fidelizer. The Air program and Windows 10 stopped working together after a Win 10 update and I could get no music to play via Air over Ethernet. Troubles with Air are common among Devialet owners. So I grudgingly went to the inferior sounding USB input. Quite a drop in sound quality in my setup.

Ok, let’s try that Fidelizer app and see what it does with a USB connection. So my audiophile wife, yes such creatures do exist, and I got comfortable in our Audio room for what we assumed would be a protracted listening session to notice any differences with Fidelizer. Kuhn Keetakawee, the creator of Fidelizer, had suggested I use the maximum setting of Fidelizer free which is called Purist. Yes, I got a personal email from the creator of Fidelizer in using the free version. That is rare! Ok all set, and we listened to three familiar tracks without Fidelizer. Nice, but not as good as over Ethernet with the infuriating Air application. Install Fidelizer at Purist level and fire up Girl Combo’s a’cappella powerful rendition of How Great Thou Art. Maybe ten seconds into the tract my wife and I are staring at each other in joyous disbelief. My wife says, what happened it sounds great. Yes it was a very big jump in sound quality in our system. It brought the USB connection close to Ethernet connection with the oh so infuriating Air app. I explained to my wife that this was the free version and there were two more powerful versions with promised improvement at each step. I also mentioned Kuhn Keetakawee’s optimally Fidelized music server.

We came to following conclusions regarding Fidelizer, we ordered the maximally Fidelized Nimitra music server, and my wife renamed the product for us as the Fabulizer.

Marcus Krafft

After running Fidelizer Pro*(non-free version) optimisation, I was able to lower my Mutec MC3+USB’s Asio buffer down to 64 Samples and USB streaming mode set to Minimum Latency. No audio dropouts experienced(which wasn’t possible without fidelizer).

I always keep my windows machine very well maintained(no spyware, bloatware or any unnecessary services/background apps). Even to the extend of going to device manager and disabling any hardware that is not essential(reducing processor IRQ)

*Why I bought the Fidelizer Pro is because Windows serves as my primary work/gaming/entertainment consumption(including audiophile usage) computer, thus I want to optimise it’s audio performance to the best I can.

Madaboutaudio

Hello! All works well! My system with JRiver began to sound bladeturn and clean. Thank you! All the best!

Nalimov Andrey

Whoaw what a huge improvement! It runs very smooth in audiophile mode.

Erno Groot Severt

Thanks for answer me quickly, yes bouth disc run in the same machine.
I’m really happy with the new sound, I thought that it’s very diffucult and expensive get better sound in my equipment, I have a metronome C2 tube dac, a Jadis JP2 tube preamplifier, a Merchand tube 4 ways active crossover, a Mcintosh MC2500 solid state amplifier for bass, a Jadis Defy7 tube amplifier in the mid bass, Conrad Johnson premier tube amplifier in mid high and a Mark Levinson in the high, with a 100,000 USD custom loudspeaker.
I use Jriver MC22 with audiophile optimizer in my computer with Windows server 2012R2.
The sound was great, but now is even better.
Congratulations for your app.
Now I have a big problem thanks to you…… I don’t want to turn off my sound equipment.
Again, thanks a lot.

Jesús Trillo

Jesus Trillo (Audiophile Optimizer)

Hello Keetakawee,

I installed Fidelizer Pro and run the set up without any problem. Quite the opposite… I’ve never heard my audio system so clean and so musical ! Fidelizer Pro is a great upgrade and you’re a genius !!!

My PC is dedicated to audio, I’m using JRiver as a player and music server and the only other software installed on this PC is for the control of my DEQX digital Xover. Looking at the various levels of optimization, that gave me the idea that while I need to keep access to my local network , I could disable the access to the Internet and turn off some security features that uses a significant amount of resources. I tried a few levels of optimization and the one that seems the best for me is the “Purist – Streamer” . Should you have any advice for a better choice, please let me know !

Best Regards,
Denis

Denis Colbert

Hello sir Keetakawee Punpeng

Allow me to thank you for the continued improvement of excellent sound. Especially the last two Fidelizer versions 7.3 and 7.4, allow me even with modest instrumentation, sample the quality of the actual Highend. Compared to the much more expensive device at my friends / but playing Without your improvement / my faithful sound audibly, spatial and dynamic.

Thank you once again for your contribution and for your advice.

Sincerely Ivan Remiaš

Ivan Remias

You do so much work in 7.4. 7.3 sounds on low level vs 7.4 I am can’t tell how I thanking to you. You are on right high-way.

Thanks, I don’t know what I do without you and Fidelizer 🙂

Stas Danylyshyn

Hi Windows X

Thanks for the update.

I have recently installed Win Server 2012 R2 with AO which I run in core mode with a foobar shell. The sound is fantastic.

Keep well
Malcolm

Malcolm Sangster (Audiophile Optimizer)

Hi all, 1st, Im new to this forum, 2nd Happy Birthday Keetakawee.

I came across this program via the trade in the UK with one of my friends asking if I’d tried it.

I hadn’t and as I’m one of those who has to mess, I decided to try the free version.

My system was brand new built by myself, it’s a dual system with both movies and music.

Windows 10 pro, JRiver, jRemote for control. I use USB for cd playback via my Teac UD-501 into my old AVR600 and onto my ES22 speakers.

Movie side, an array of toys.

Cables – Chord signature Aray and old signature linking the electronics.

Musically, this program (version 7.3) adds the finishing touches to create to a sonically brilliantly musical experience. I have a system which brings so much detail out in the music that I cannot believe it.

I’m also one that feels that if someone creates something that’s this good from the out, then they need supporting by buying the product. I only listened to one CD with the free version and heard what it was capable of, so purchased the pro version. So I cannot compare between the two.

Had some fun installing it, but had great help from The guys.

The end results is I would never go back, this program is the missing link for music. As for movies, with a special media centre option in the pro version, I’m hearing more definition here to. Program being used is Kodi.

If your on the edge of buying, just do it. You’ll wonder why you hesitated.

Cheers, ShanePJ

ShanePJ

Keetakawee:

Yesterday I have the first listening session with the Fidelizer Pro .

So far , I can say that it introduces more timbral finesse , a sound stage more organized and deeper, in relation to the , already good, fidelizer free.

I will report to you our further analysis…

Thank you for all the attention you have me yesterday !

Best regard
Hamilton

Hamilton

Hello Keetakawee,

thank you for a link and Pro version. 🙂 She works very well in Purist/Audio Player with JPLAY mini. 🙂
In my case Fidelizer it’s a huge improvement: deeper bass, better dynamics, clarity, more refined sound (analog-like), accurate positioning.
Now I can’t imagine that my system could sound even better! Great cooperation Purist/Audio Player with JPLAY mini!

Regards.
Andrzej

Andrzej (JPLAY)

Hi Keetakawee

I am very impressed with yours software.the sound is now much more analog, if i can put it this way,less distortion.

Lukasz Budzilla

Finally got the Pro version… Amazing improvements all round, but in my system specifically, bass slam, note distinction and the initial note attack all improved quite remarkably (sorry, I am a musician and I relate everything to notes). I also have been able to get drawn in the music and vocals almost instantly with good material, but even in mediocre productions or lack luster recordings the involvement was there. I am a happy camper! Thank you Keetakawee!

tedwoods

Everything done well and sounding great!

Thank you,
Kohjin

Kohjin Yamada (JPLAY)

It works excellent and a very good sound.

Petra Liebich

I am really enjoying especially in combo with a Jitterbug.

Murni Jamil

Everything worked smoothly. I used Purist, and can definitely tell a difference (good) over Extremist Free.

Thanks so much,

Jim

Jim Zadrozny

Hello again,

I’ve tried out Fidelizer Pro for only a couple of days and I’m stunned. What an improvement! It’s just like magic. The sound is more natural, detailed, bigger, firmer, airier. The list just goes on and on.

You really are in service for a better future for the recorded arts. Thank you!

Kind regards,
Vidar

Vidar Benonisen

Hello Keetakawee,
Improvements after installation of Your program are significant and more audible compare to AO 2.1!
Thank You, now I can barely recognize my favorite source ( APL HiFi) from PC, both connected with APL dac!

Greetings from Black Sea coast, Georgi!

Georgi Vasilev (Audiophile Optimizer)

Hi Keetakawee,

Thank you. I have tried your free version few times in the past, right from the first versions when you released the program. I’ve never been able to hear clear difference made by it but yesterday evening when I auditioned once again, I just so much enjoyed the music I heard that I decided to try your plus version.

I also fully read the two threads in Head-Fi regarding your product, also the one in sound science forum where they grilled you about measurable differences. I’m senior Head-Fi’er myself and started my hobby with headphones. What I have learnt in 16 years in this hobby is that not every difference is measurable, especially in digital audio. My latest findings confirm that USB cables have clear audible differences and so do power cables, even though I was very skeptic about these two.

I use single PC Win10 setup with foobar2000 to TeddyPardo U2S USB bridge (throudh Chord SilverPlus USB cable and AQ JitterBug) to Naim DAC and forward to my Naim setup.

Greetings from Finland!

Head-Fier

Hello mr. Keetakawee Punpeng,

I received and installed the both pro versions of Fidelizer..

It sounds really good, more openess, transperency, more bassbody, stage, fluid etc..I am very happy..??

Again, what I hear with fidelizer pro is much better what I heard untill now.

Kind regards
Hans Schurink

Hans Schurink (JPLAY)

Dear Keetakawee,

Many thanks for your excellent software. I have a high end Lindemann 820S SACD player but the weakest link is in the pressing and manufacturing of the CD and the optical readout. I was always convinced that once you were able to take those out of the audio chain you could get an even better sound. Taking a bit perfect copy and storing that on a SSD would eliminate that weakness.

However until now the sound from my PC based music server was not as good as from my Lindemann player; a player that I also can use as a DAC which converts each audio stream into a DSD stream.

But with your software for the first time there is now MUSIC and the sound is far superior to the replay from the SACD/CD. Thank you very much for that!

Jan Drenthen

Dear Khun Keetakawee,

All I can say is “Wow”! Purchasing Fidelizer Pro is the best $70 I have ever
spent on audio “gear” over the past 40 years! I never thought that my cheap
laptop with an i3 processor and a portable DAC could produce audiophile quality
music- but it does now! (I have a much more powerful laptop which needs repair,
and I will be ordering another copy of Fidelizer Pro if I can ever get it repaired.)

I am also now inspired to build a custom Music Server. When that machine is
complete, the first software to go into it will be, you guessed it, Fidelizer Pro.

Finally, I was pleasantly surprised at how much of an improvement Fidelizer Pro
represents over the already impressive free version- but that’s the way it
should be. Keep up your fine work- I’m looking forward to seeing whether you can
improve Fidelizer Pro in the next version!

Best regards,
James Costa

James Costa

Hi,

Got the Fidelizer Plus 7.3 software.Looking forward to hearing from you about future developments.I am very pleased with the results so far.It’s been a revelation.Thank you.

Regards
George Johnson.

George Johnson

Thank you!

Yes, I do believe that when Fidelizer is engaged there is a greater sense of spaciousness, more dimension and air. Very similar to what I hear as jitter levels decrease.

I have gone to great effort to minimize the transfer of noise down the USB bus,

but different software players sound different, and the best sounding player I have tried so far didn’t offer enough features, so I went back to Jriver, which sounded just a tick more flat to me.

Now when using Jriver, there again is greater dimension.
Trying to understand WHY software optimizations would make such a difference, all I can reasonably come up with in my mind, is, the less processes that run, the less hardware that need be engaged, which leads to less noise being created and sent down the USB bus and the ground plane, and greater signal integrity, which is also very important, as it means less processes need be active in the USB receiving chip, which, again means less noise pollution.

There are those that disagree, but my experience is jitter matters, and in a bigtime way, and even small changes in timing make a very real audible difference. Every little thing that can be done to improve signal integrity and lower noise, therefore improve clock performance, is important and adds up!

Thank you!!

Andrew Ballew

I love the sound of it so much I do not want to be without it. I was using it with JPLAY the sound was wonderful.

Colin Layton

Thank you. I’ve just set it up (along with Audiophile Optimiser) in Purist/Network Render mode for use on Windows 10 Pro NUC as HQPlayer NAA. Sounding pretty wonderful. This is with 512 DSD into t+a 8 DAC DSD. I’m still getting some (very faint) unwanted noise through the speakers, which sounds like it’s caused by the computer, but at the moment I don’t have any kind of isolation between computer USB and DAC, so I’ll probably get something like Intona/Regen/W4SRecovery etc.

all best wishes

Craig (Audiophile Optimizer)

Thanks for the explanation Keetakawee!

My wife and I listened well into the night… Your software does make an amazing difference. It’s like almost every last ounce of distortion has been removed! Colour me impressed indeed!

Thanks again!

Jeff

Jeffery Malloch (JPLAY)

Hi, just to let you know I’m very happy with the program. It’s made and amazing difference.

???

Regards, Shane.

Shane Harrison

Hi Punpeng!

I’m impressed, just could not believe the effect of the software will be so great. Since the first moment they were immediately noticeable improvements, the scene is darker, more air between instruments, three-dimensional sound image, unbelievably . Planing to go from Fidelizer PLUS to PRO hopes that the difference will be audible? After ten days of listening I can say that you’ve done a great job right, the computer now turns into audiophile machine.

Thank you very much.

Stanko Stankovic

Greetings to Windows X,

The upgrade from fidelizer 6 to 7 has been good to me. Giving me extra refinement and bit more punch compared to the old version. Comming from Windows 10 with fidelizer 6 going to Lubuntu with low latency kernel and now back to Windows 10 with fidelizer 7. Realized that in my system Windows 10 is giving me a more natural soundstage.

Equipment: Tannoy DMT 10 modified, Pink Faun DAC 2, Pink Faun 2*90i amp, pc streamer asrock 3150dc with lineair Sbooster 19v powersupply and roonserver.

Thanks!

Robbert

I´ve instaled FIDELIZER PRO for a few months now and I`m very happy with it. I´m using FIDELIZER for Spotfy with JPLAY and they works togheter isn´t it? The performance is very good in my system (desktop); the sound came from a silence background, the hights and bass is excellent and the soundstage is exceptional!

I´ve upgradet for WINDOWS 10 and it seens that the performance turned better now. It worths every cents that I´ve spend with the Fidelizer…It seems that I´m not need to spend money in buying CDs any more! Thank you!

Marcos (JPLAY)

After two days of listening I can honestly say this is a fabulous upgrade…the detail is amazing…far more clarity in all registers…more snap and a lot more toe tapping from me…how much better can it get?

Regards,
Andrew

Andrew R Vincent

Hi Punpeng,

I installed Fidelizer Pro last night and i could say that if brings a significant improvement on the sound of my system. Coming from the free version i did’nt expect the improvement to be compelling. It open up the sounds with bags of details and with no trace of harshness in it. It’s money worth spent for me.

Thanks and keep up your good work.

Leoncio Barrera

I tried the latest 7.3 software in audiophile mode. Install was flawless. I had previously run the fidelizer in purist mode with the multi core selection off as suggest since I some problems with purist initially. I was concerned since I use the my music server with chromecast-audio and monkeymote to control foobar2000 that in purist mode might be too much to ask. Now that your newest version is installed, I will go back to purist to see if everything is stable. The new version even in audiophile mode does represent a better depth of field and positioning. I tried it listening to HDRx classical/jazz and test AIFF 24 bit files. I am surprised at how well your software helps with performance of the OS.

 

All my tube equipment has been refurbished / upgrade by me to my satisfaction. As DIY guy, I love to tweak my system. Your product does really fit the bill.

Thank you.

Michael Stallone

Tanks for your Fidelizer update 7.3
This is a big upgrade. The imaging is more precise. Complex orchestra are more more clean less comfuse. The bass are better, the medium are better.
The sound is more dynamic and i understand more lyrics.
The only little complaint his for the hight; they seem less sweet less melodius more hard.
Chord Instruments (Violins, Guitars . . . ) and drums have moore vibrations, richer
The imaging is larger, deeper. The music is more dancing. I have a better perception of the instuments position on the stage.
I have headphone ByerdinamicT1 that i have been tweek. I have an excellent DAC and excellent Headphones amp all of this is interconnect with firts class cables. The USB power come fron a separate amp. My computer is all new and his master card have been choose for his sound quality. All of theses équipments and cables have been tweek with sylver paste, over grounded and protect from vibrations. I use Jriver, Jplay, Fidelizer Pro, Process Lasso, Park Control and a marvelless Usb driver name “USB-Audio.de Asio driver”. This system with this kit of software give are very transparent sound system. It reveal that this 7.3 version is a marvelless upgrade.
I work with my computer with a lot of software open at the same time and 7.3 is less intrusive than 7.1 and 7.2.
Tanks a lot
Robert Drouin, from Quebec city, Canada
Excuse my english, i’m a french canadian who live in a 99.99% french peaple.

Robert Drouin

Thanks for the update.  Sounds terrific on Windows 10 with HQ Player.

Grover Gardner

Sounds good…very very good!

David Bosci

Dear Windows X,

I have downloaded the application and installed successfully and find significant improved sound quality.
Thanks a lot.

Best Regards,
Andrew

Ho Andrew

Hi Windows X,

I’ve installed Pro and have been testing things with it. My computer is general purpose though not heavily loaded. I use Maple18 on it but it seems to run ok even with audiophile settings engaged, and I’m not noticing my updating or my McAfee stuff suffering visibly. Sounds great with foobar2000. The sound goes to my DSP/amps 40′ away on 192k spdif sent over a 5mw laser (my ‘invention’ 🙂

John Roumas

Hi

Fidelizer software is simply awesome for me – I nearly gave up on PC as a source, but now I am getting really close to my CD player – the sound is certainly more spaced out and softer, much less of that digital glare, with a bit of tweaking though JRiver, I can make it as warm as suits the music.

Keep up the good work!

Marios Petrou

Hello mister Punpeng,
Just did an upgrade to PRO!
Hope to hear from you soon, very pleased with the audio “upgrade” on my computer!
Greeting,
W.L. Van Winsen

W.L. Van Winsen

Sounds good, obviously so much improvements. Listening to music LCD3 is awesome. Music is much more matured up. I will follow up for future updates.  2500 Baht is worth it for the music, really good.

Thamrong Munkarn

Thank you much! Congratulations. Immediate and extraordinary improvement, even over the free version. Keep it up, Thomas

Thomas Fischermann

Hi WindowsX,

thanks for the Download Link!

I installed Fidelizer Pro 7.2 on my AudioPC. I do not exactly how and what you are doing in detail by your software, but the result at least in my system sounds phantastic!

I’m seriously thinking about installing the Pro 7.2 licensed version on my Control PC, in case you provide me a good offer at the end. ?

Thanks, best regards

Rainer

Egregious Windows X,

I’m testing my new Fidelizer Pro. The improvment is evident: more presence, more detail and (for me very important) increased softness of Highs. So my digital collection is even more appreciable.

Thanks

Giuseppe Fontana

Hi,

Yes very nice/you have done good work,I have been making some optimizations manually before I found Fidelizer. This is much more effective and easier (Thank you).

Anyway I like it so I will buy one for my HTPC,I will do this tomorrow from that PC. Also I have a very High End PC I built myself,and I am able to use the Purist mode and still use the PC as usual /so I am very happy.

Thank you,
Wayne

Wayne

Hi, it works fantastically! Running it at purist level – usb into Geek Pulse Fi DAC . The difference is amazing as I’m sure you know. The background is so much blacker and the sound image more 3 dimensional. Many thanks for a great and easy to use product.

Matt

Matthew Goddard

As you know I just purchased Fidelizer Pro. I use it with JPlay and AO 2.0 with ROON on a dedicated audio PC I built myself and continue to improve. The PC is connected to Berkeley Alpha USB and DAC 2 to my beautiful CJ ART amps then to Amphion 7L speakers. The FP upgrade was very significant, most noticeable for me in the improvement in microdynamics. The already good soundstage was made simply better defined with more space between instruments as well as musical notes. I’ve been an audiophile since my early teens (AR 3 and Voice of the Theater speakers!) so with over 45 years of listening experience I’ve heard some really good systems. It would take a great deal of money to get much better that what I am currently listening to. Thank you.

All the best,
Jim

James Daras

Oh my gosh I just installed and restarted my system. It is now so much faster and JRiver comes up much faster and cleaner. Thanks so much!!

Patrick Hillard

Hi Mr X

All installed and working fine.. Haven’t yet done critical listening, but first impressions are good.. Quieter background more focused sound.

Thanks again for all your help. I will certainly recommend this to my other audiophile mates.

Cheers/Bobby

Pradeep Sajdeh-India

Hello,

I have been using Fidelizer for a month now and after this period my feedback will be no surprise : this is truly a great product. For some years now I’ve completly shifted to streaming music from Spotify to Deezer and now Qobuz. The convenience over CD clearly came at the expense of the sound. So i was looking for solutions to close the gap with regular CD player when I read about Fidelizer and Jplay.

At this time, I don’t know if it is totally closed because I don’t spend to much time on A/B comparisons. I just can say that my frustration of PC music is know gone in using Fidelizer and Jplay with Qobuz. Let alone Fidelizer already does the job of making the music more evident to a great extent. The addition of Jplay makes the music even more communicative and easy to follow emotionnally.

These sofwares are essential. Without them, I didn’t feel the need to shift from 320K Deezer to FLAC Qobuz that I had on trial. The limitations of hardware probably lessens the difference in sound. Hearing carefully there was a difference, but now it comes as an evidence. Thank you for such a great product !

Regard,
Jean-Marie

Jean-Marie Burgio (JPLAY)

Super super Thank you. It all comes down. Thank you for helping me. Finally I can enjoy the music.

Andreas Furst (JPLAY)

Hi again!

Well having a $50.000 system and expecting a $70 program to enhance the sound quality is completely ridiculous! I was wrong! This is simply awesome , I’m so happy I stumbled upon fidelizer!

First impression is the voices, so clear and standing right in front of me. The tight bass, wow the tight bass! But guess you already knew that. Was expecting just a tad more transparency in the mid/treble, but for $70 I really can’t ask for anything else. Amazing!

Keep up the great work, looking forward for version 8. And thank you so much for this!

Aleksandar Stojkovic

Keetakawee:

My initial reaction is Wow! I would compare the difference to same level as that the uptone regen made…but in different areas. I will have to wrap my ears/brain around that. But basically the staging and layering is imediately noticeable as much improved…more focus and presence. Backgound is substantially darker. Quite a bit less upper mid and high frequency hardness. Bass more extended and resonant. On low notes i can feel more concusive impact in my chest. More Prat and dynamics are faster and both larger snd also more subtle. I am impressed…easily worth the money. Far easier to setup than I would have thought. Run in Purist ..audioplayer no networking. Just reboot without when I dont need it. Its not quite as good if I allow networking and internet runs less than half speed. So will only run it purist no networking. Amazing

Thank you and Happy Listening,
James

James Whiting

Wow.! Very nice upgrade from earlier version. Sounds better than my LP playback now

Thanks!
Al

Al Salerno

Dear Windows X

Thank you so much, was one of those weeks so it took a few days before I could install the Fidelizer Pro setup. I set it to run purist/audio player using J River 19/Win 8.1 and the results were beyond expectations! Clearly better than the trial version and worth every penny.

I myself worked in pro audio in the past doing multitrack recording. OS was XP, on much slower machines than we enjoy today. To even do multitrack on a PC back then required DAYS of optimizing the OS/machine environment to create a smooth running unit that can reliably record. So I can really appreciate all of your work that went into making such a sophisticated solution as fidelizer and it is wonderful to just install it and enjoy!

David Smith

Expected to get a more stable signal chain, what it does. Didn’t expect that it would make a noticeable difference in sound quality in my case, but it does as well.
Impressive, good job, well done!

Norbert Alt

Hi Windows X,

Much thanks the Programm work and it s absolutely grest!! So much Details ! I’m happy about it and i will Tell it to my Friends so you get much New Hifi freak s!!

Thanks Mario

Mario Dausacker

Windows X,

I finally got around to installing Fidelizer Pro 7.0 and now 7.1 on my 2CH System. After the first song, I knew that this was a nice enhancement to my sound system. I have a C.A.P.S. based Windows 10 PC running Jriver through a BADA Alpha USB to a Mcintosh MDA1000 DAC, C1000 Tube Pre Amp, MC2301 Monoblock Tube Amps to PMC EB1i speakers.

Your software definitely removed the digital glare. Like others described, “it was like a veil was lifted.” Soundstage and bass improved, clearer no haze. My system is now complete, Great Job.

Regards,
Rob

Robert Peyer

Hi,

I am totally pleased with the Fidelizer Plus 7.1!

I can work at my PC hearing music without any interrupts with working Bluetooth an WLAN. I use it in consumer audio configuration. The improvment from the free version to the plus version is clearly sensible.

Thank you and have a nice day,
Carsten

Carsten

Hi,

Well I tried your FPro 7.0 last night, and it is all that people have said it is.

More low level detail, more depth, more space around people and sounds in the recording. You hear new details and the decay of notes in the recording space..

Less glare, more fullness to the sound. Most noticeable for me on piano.

Voice has a more 3-D sonic quality, more lifelike. Again, more fullness and roundness to the vocalist.

I played around with various configurations, changed media players, reset to basic workstation then back to purist, all good, no trouble.

Is it worth the price you charge? – Well I am a happy customer, and I am happy with the purchase. No regrets, I enjoy my music more.

I run an Acer Cloudbook 32G SDD, with a 2 Tb external HDD for the media (wav 24/96) on USB3.0 port. USB out on a USB2.0 port with Jitterbug to a Gustard U12.
Media player is Foobar when SQ is paramount, and Kodi when I want a better GUI and am not listening intently.
Then AES/EBU to miniDSP PWR-ICE125, to LxMini speakers.

So thank you, and all the best

Jay Mendoza

Thanks for activating the software so quickly! I’ve been testing it out a little today and so far I like it! Thanks! 🙂

Holly Hughes

Thank you for your assistance!
I have been using the free version for many months and it solved all my dropout problems and significantly improved my PC performance when using MediaMonkey. I had tried shutting down apps and Windows services manually but was not successful in improving the latency issues to the extent the Fidelizer does. Thanks for the great software.

Best regards,
Mark Lemelin
Massachusetts

Mark Lemelin

Fidelizer 7 is fantastic. I have a very good analog system and have always tried to get my digital front-end to sound as good as my best lp’s. I am there now, 7 was the last missing piece.

Gary

Gary Aigen

Dear Keetakawee Punpeng,

I did some listening yesterday after installing FPro. My aim has been to find a better alternative to Mac/audirvana which I have used for several years. The two things I like about Audirvana are playback from RAM and shutting down unnecessary processes to reduce jitter. My set up is fanless Asrock mini-ITX, linear PS, all int/ext cables and case shielded (near perfect Faraday), McIntosh MA6700, Thiel 2.3. Foobar 2000 set up for WASAPI event with optimized buffer settings as per FPro guide in Windows 10. Without FPro, Foobar2000 is darker with smoother high frequencies compared to Audirvana/mac mini, but with reduced soundstage and slightly less detail, but very nice to listen to. After installing FPro on the audio player setting, there is simply no comparison. More depth, deeper base, wider soundstage and more detail. For me this is sheer joy because my mac mini/audirvana is at last beaten. I congratulate you for this achievement because nothing else could do this as effectively as FPro on a PC. FPro produces an immediate and profound difference to the sound which goes (in my case) from very good to fabulous. If tests were performed, then I would anticipate FPro to drastically reduce jitter. I also realise that a lot of the reviews published on FPro are correct in their conclusions. I am rubbing my hands in anticipation because my next step is to set up JPLAY.

Thank you for taking good care of my request.
Best regards.

Gareth John

Greetings from Singapore.

I have been listening for the day and I must say Fidelizer does what it professes. I installed it on my i7 Toshiba notebook running JRiver as a renderer and output via Ifi iUsb 3 to my Teac UD 503 DAC. My network server is the Melco N1A. Cleaner and more tactile bass on a quieter background.

Keep up the good work.

Jeffrey Leong

Hi!

Thanks, i installed, and works.

I not heared too big diference compared to before installing status. It is more analogue, better detail, but this diference is tot as big as i readed from forum and webpage.
I have not time to test it really in deep, so i will take time during the following week to test it.

Regards,
Attila

Attila Ken

Dear Keetakawee Punpeng!

Thanks a lot!

Big improvement!!!! Finally where I wanted to arrive!

Thanks again,
and best wishes,
Uwe

Uwe Schwarzer

The sound is amazing, I have to say I couldn’t be happier with fidelizer.

I’m using a Windows 7 PC with a SOtM tX-USBexp USB PCIe Card sending audio via USB to a IFI IUSB 3.0 which then sends audio to my Emotiva DAC. I was previously using asio4all as my driver but fidelizer blows it out of the water. There’s no competition.

Thank you for pushing my system to the next level.

Jean Gonzalez

Hello.

Thank you for offering a product like Fidelizer. I began my venture into Hi Res computer audio a little over four years ago (which I guess makes me a veteran of sorts LOL). I have along the tried many different types of computer builds and various software settings along with various DACs and sound cards.

I used Fidelizer (the free version) for several weeks and the improvements were obvious. When Fidelizer 7 came out, I purchased the Pro version immediately. The improvents are substantial and numerous: improved transparency top to bottom, cleaner sound , larger stage, improved timbre, lower noise floor……. I could go on. A marvelous product that performs well beyond it’s asking price. Keep up the great work!!

-Mike H. Iowa, United States

Michael Heffron

with your app, the sound of the digital part of my system have reached the quality of the analog part

creditable work

thanx a lot
regards

Andras Hajnal

Hi Keeta.

Very pleased with the pro software, I’ve been listening to music all day here in the UK and I’m hearing improvements all round with sound. I’ve had it set to Audiophile with Network Render.

Thanks
Kev Tugby.

Kevin Tugby

I can’t play without him!! He is the missing link, to play music with the laptop.
A friend of mine owned a QA660—SD Card WAV Hi-Fi Digital Audio Player from QLS-HiFi.
With my setup with laptop + Chord Mojo DAC without Fidelizer Pro I have no chance against him.
Now I think, I have a little chance or more….
Thank you.
With best wishes,
Ulrich Seipel

Ulrich Seipel

Hi,

I get it working with AO in single pc mode and the result is very good, more analog like

Congratulation,
David

David Vandendorpe (JPLAY/Audiophile Optimizer)

Sound quality with Pro version is night and day comparing to free version. Pro version gives better focus and darker background. Great value.

Sathit Chanprom

Hi Windows X

I am listening now to my music with Fidelizer 7 and I am in love with it!
Darker background and more natural vocals. I also noticed more air in the music and more focused sound stage. I can’t imagine myself listening to music from my PC without Fidelizer

Thank you for the great work!
Cheers

Moussa Obeid

Dear,

Thank you for the software! It changed my system from ordinary to high end! Truely amazing!

Kind regards,
Edo van den Broek

Edo van den Broek

I’m listening now to the 7 it sounds so much better, You make my day thanks and a fantastic weekend.

( : Henri Jimmink : )

Henri Jimmink

WOW!! This is incredible. 7.0 plus is such a improvement over 6.0 plus. The differences are striking!!! My computer audio has NEVER sounded this good. Keep up the good work and thank you ????

Scott

Scott Burchett

Dear Keetakawee,

Great Job! Wider stage, airier sound, more palpability: phantastic. Thank you very much

best for you
W. Zöllner

W. Zöllner

Hallo Lucifiar,
Congradulations!
Fidelizer 7.0 is already running. No problems with installation, all functions still working.
And it is a step to more music again. Music comes more relaxed, more “analog”. Most improvement I can hear at soundstage. The picture is deeper and spacier with better separation of the musicians.
Wkr
Thomas Kleinschuster
Vienna
My system: hp Notebook, audioquest diamond, iusb, Ayre QB 9 dsd, KGSS hv, Stax 009

Thomas Kleinschuster

The program is actually awesome!!! I did not think, that it still brings out so much from our music.

Best Regards
Dinah

Dinah Spiekermann

Thank you Keetakawee!

There seems to be a difference. The big picture doesn’t change at first listening, but there are changes in the details.
There is more air (or room information), and the instruments are focused better, having more contour, or more defined “shape”.
This is specially detectable with headphones. Good job!

Thanks,
Joachim

Joachim Siegmund

Hi. First of all would I like to thank you for a great piece of software J

I have a dedicated server with Microsoft Server 2012 R2 64bit. The hardware has been heavily tweaked J Oversized linear power supply, 8*22.000uF cap bank. The motherboard has its own external OCXO precision clock. A dedicated SSD drive for the OS and media software, this SSD has its own external OCXO precision clock. Another SSD drive for the music files, this SSD also has its own external OCXO precision clock. I have also installed a dedicated USB card for USB-SPDIF converter and this card also has its own OCXO precision clock.

My server uses AudiophileOptimizer 1.40 I have also installed JPLAY 6.2 and I run JRiver 20.0.27 as a service and this is my media software. The server has one net card which is connected via cable to my Wi-Fi Router. JRiver plays all files directly from the internal music SSD drive (never via a NAS).

I control JRiver via JRemote on my iPad. Because I use JRiver 20.0.27 can I still use ASIO, so the JRiver “Audio Device” is set to “JPLAY Driver [ASIO]”. I then installed your “Fidelizer Pro” software and did not expect any sound improvement, due to the heavily optimized hardware and software. I was wrong! your software did improve the sound, it removes digital glare which makes the server sound more natural. A very good improvement J I always set the “Optimization Level” for “Extremist” I think that it gives the most natural sound.

Best regards
Jacob Land Jensen

Jacob Land Jensen (JPLAY/Audiophile Optimizer)

Nice software with a good improvement on my audio system

Regards
Lmal

Laurent Maloberti

hi team

Fidelizer is already a must have software in my list for hi end SQ.

tks

Angus Liu

Fidelizer opened Tidal right away
Sonic impressions – 4 BASICS
– instrument separation
– imagining – instrument location in stage
– more 3 dimentional Staging – especially depth layers
– on massed strings – less digital shrill – less DIGITITIS

Thx for super program
I will be ordering FA Pro soon

Wally Malewicz

Keetakawee,

Thanks for the quick reply, I listened last night to the plus version, wow what a nice improvement over the free version, space and better defined leading edges on bass, the performers were more there, that “noise” that is there, although unnoticeable until it is gone, is reduced and the palpable presence of the performers is outstanding. Like they are in the room. I did not expect that step of improvement over the free version.

Be well

John Makela

Hello Windows X,

I recently purchased and installed the PRO version 6.14 and I’m very satisfied …. One of the features that I really like is that when you turn on your PC, automatically starts fidelizer;
The end result is then what I had already warned, …… dynamic, speed and improved detail.
On the PC server, I SO WS2012R2 / Fidelizer PRO 6.14 / Process Lasso …. I’m planning to put on and take off Audiophile Optimizer Process Lasso;

thank waiting
Greetings

Lorenzo Mordini

Hi Keetakawee…

WOW!!

I listened to a few songs with just the free Fidelizer, and installed the PRO version. After a minute of listening the first song, I knew I was in for a treat.

The music just flowed better and I felt it had more warmth to it. The voices and insruments were very coherent.. like they played well together

The soundstage had more depth to it, voice/instrument separation and more air to it. Highs were sweet, bass was meatier, and voice .. so natural.

In fact, I have been listening to music for the past 4 hours non stops…..I think this is my longest listening session so far…

Adding it to the control PC also improved on what was already good!

Thank you so much for your hard work.. it is quite appreciated!

FYI,

my system uses Jplay and Minimserver

Control PC -> Audio PC > Uptone USB REGEN-> Conrad Johnson HD3 DAC -> C-J CT6 preamp -> C-J LP70S amp -> Totem Element Fire

Have a good day! and thanks again!

Serge Ah-Hee (JPLAY)

Hi Windows X,

I am the happy owner/user of Fidelizer Pro and I have a quick question. I installed Fidelizer Pro on my recording studio computer and I’m MORE than pleased with the sound quality. It makes a VERY noticeable improvement in both studio monitor and headphone playback, and I couldn’t be happier with the result.

Thanks,
AL

Al Stroh

Fantastic work X, keep it up! I had no idea there was so much to be won with finetuning the the OS. I’m amazed!

Bas ten Tusscher

I am really really impressed by the fluidity and analog like sound of my computer by using Fidelizer. Last night whole family sit and listen music and I feel absolutely no fatigue after 3 hours of continuous long listening.

Thanks

Recep Kaya

It’s all installed and sounding fabulous

Cheers

Steve Welsh

Mr. Non,

This is simply amazing. I never expected such improvements at this level. The performance is much more quiet and relaxed now. No more harshness to my ears, even with more clarity. It improved my system more than changing cables.

Chaiwat Kootiratragran

Hello Windows X,

First I want to thank you kindly for sending me the Fidelizer Pro 6.13 software today !
I have installed it and I can tell you that the sonic difference between the free version and the Pro version is huge (as you promised me in your previous mail)
It’s amazing how much more detail,”air”, resolution,and soundstage width the Pro version let me hear in comparison with the free version, so compliments to you for this great results !
The combination of Roon, Fidelizer Pro 6.13 and Uptone Audio Regen USB made my Asus VM 60 mini pc a seriously good sounding renderer and I can tell you that it is sounding better than the previous streamers/renderers I had in the past (for example: Naim NDX, Moon 280 DSD/MiND, Moon 180 MiND with Teddy Pardo 12/2 LPS upgrade)

In the near future I want to upgrade the Asus mini pc with a good linear power supply such as the HDPlex 100 W or a Teddy Pardo 19/3,5 which will give the mini pc hopefully an extra sonic upgrade….

Best Regards,
Jan F.

Jan Forman

I am listening to my first album since installing Fidelizer Pro on my Samsung netbook running Windows 10 and JRiver MC21 through a SoTM dx-USB HD interface, USB Disruptor power supply and Cambridge Audio DacMagic. I can hear more depth, clarity, vitality, and layers of detail – very exciting, much nearer the artistic expression intended by the musicians. Wow! Makes Yes’ Fly from Here sound fabulous. THANK YOU.

Richard Varey

Many thanks. This is my second purchase from you. I know it works extremely well :). I have one installed on my audiopc at home. This one is for my laptop when away from home. Keep doing what you are doing 🙂

Best regards

Chris Gajzler

Brilliant, thanks. Really enjoying the program by the way, I’m using it with process lasso now to kill off all other processes. Great stuff.

David Thomas

Hi, Lucifiar

I run Fidelizer Pro + Asset UPnP Server + Linn Kazoo on Windows 10, It sounds greater than J.River Media Center 21, the background is very dark, instruments sound separately and clearly, I like it.

Echo Chang

Lucifiar,

Thank you for sending me my new fidelizer pro installer. Fidelizer creates stunning sound, its like adding another device to my stereo system. I will not want go back to listening again without the works of fidelizer. Excellent work!

Thank you,
Allan Jay Villanueva

Allan Jay Villanueva

I gotta tell you X. This program is by far the most significant upgrade in my headphone journey. It’s quite a revelation! I can’t believe what I’ve been missing since joining this hobby.

Best $70 ever spent!
Cheers

Sam

Thanks for the update, the program works fantastically with my hi fi headphone setup.

Travis McCoy

Thank you. Installed and did the recommended foobar2000 settings. It sounds incredible !!! Such a big sound with SQ enhancements everywhere. Closest thing to “being there” that I’ve ever heard on headphones. I run Beyerdynamic T1 headphones with a Woo Audio WA2 amp and a Schiit Audio Bifrost Multibit DAC. My little system has never sounded nearly this REAL.

Regards,
Bill Erb

 

UPDATE

Keetakawee,

You were right. With each Fidelizer step up…from the free version to Plus to Pro…the music has been enhanced. BIGGER. More immersive. More and more engaging. This is getting very close to LIVE. Big game changer in my system.

Cheers !!!
Bill

Bill Erb

Hi Windows X,

This is some brilliant stuff! Music seems to come from a darker background, with a more realistic tonality. Bass lines have improved significantly, each drum beat is tight and precise, overall bass is much more punchy and energetic. To be honest, I wasn’t expecting this improvement. I’m only using the Audiophile setting, on a 64 bit Windows 7 Pro, have not really had the inkling to try Windows 10 or Server 2012. Would the upgrade is OS really benefit the sound quality with compromising on performance (movies/streaming/light gaming)?

 

Your advise is greatly appreciated and once again, thank you for such an amazing program in the Fidelizer Pro.

Sincerely,
Ben

Ben L.Z.Y

Hello

Thank you very much for fast sending. Sound is perfect !. Sound is really 3D right now, sound stage just full blending my room which is quite large (photo attached).

I have to say that Pro version is worth every cent

Thanks you

Best regards,
Piotr

Piotr

I am with Fidelizer 6.12 Pro. I love it . It make music more Listenable to have a deep connection Between me and the artist. (my music= all stream format by miniserver-Tidall Music-DS BubleUpnp-Kinsky-JPlaystreamer-Window 8.1 laptop) I love this setup.

That is my system now. Thank You. Fidelizer to make that life to me.

Vu Hoang Le (JPLAY)

Dear Windows X,

I have to report that I changed my music server from a Mac Mini to a PPA FC10 Music Server from Paul Pang. I didn´t expect a big improvement from Fid. PRO at this high end server, but I was wrong

The advantage I got from your program is as good as at my old MacMini. It works well and is worth every Euro

Thanks for that fine tool.
Regards from Vienna, Austria

Reinhard (Audiophile Optimizer)

Just wanted to say that the sound from my laptop with red book cd playing through a portable USB bluray sounds better than my £3000 Classé CD player haha

Danny Baty

THANK YOU

The download worked and is installed. Choosing Network Render has stopped the audio drop outs while streamimg Serius Internet Radio. The music sounds so much better.

David Pritchard

David Pritchard

Dear Keetakawee,

Haven’t got time to listen and compare but I think it sounds more solid and detailed, with less grain , more dynamic, especially on the drums.

Thanks for the upgrade and I wish you a good New Year 2016.

Russell Gray

Thanks, I was already impressed with the Free version, this on to me sounds maybe less “romantic” but definitely more “fi” as in hi-fi – both run in “extreme” mode.
I use Foobar for music and VLC for movies or TV shows, a side benefit being that VLC soundtracks now sound more realistic so you can brag about this as well.

George Rattner

Hi Lucifar,

I use Fidelizer since 2 years and it’s a great work ! For me, the sound improvement it’s better than Jplay alone. I try some linux solutions, Volumio with Cubox, Daphile on my PC. Volumio sound great but it’s complex for me and i prefer Foobar, Jplay and Fidelizer on W10 PC. I choose to buy a mini fanless pc with W10 and continue with your work.

Just to give a positive feedback and thank’s for your work.

Best regards,
Benoit

Benoit Laouchez (JPLAY)

Thank you

Sound quality is a little subjective but I have a dedicated PC for storing my music and passing it to my audio system so I love your concept of minimizing Non audio processes and giving Windows a chance to provide the least affected bit perfect sound

Cheers

Frank Strelau

Dear Keetakawee,

Further to my earlier email below, in which I said that, having got everything working again, I would do listening comparisons between 6.11 and 6.12, I thought that you might like to hear of my impressions and so, here are my comments. There is more air around individual voices and instruments, high tones are clearer and more defined, whilst having less digital grain or glare. There is a tighter bass but it has more extension. The 6.12 update allows deeper insights into the music whilst, in spite of the greater resolution, making listening to music more relaxing. The update is well worth while and you should be very pleased with yourself, the Task Scheduler issue notwithstanding.

Thank you again for your continuing efforts and for your help with the workaround.

Best regards,
Peter More.

Peter More

Hallo and thank you,

after some years with free Version (up 1.x) i decide to update together with win 10 Pro.
Easy installation, great sound Improvement. The Pro Version is even better sounding !
I am really happy with.

“My Setup : Extremist
Music server with Network support.

Audio only Music server Similar to C.A.P.S V3 Carbon
Hi Face two with separated Power-supply.
JRiver + JRemote
and Windows Remote for Administration”

Best Regards
Michal Kaspar

Michal Kaspar

Congratulation for Fidelizer Pro! There is an incredible improvement in sound quality. Really great!

Regards,
Eugenio Fenocchi

Andrea Fenocchi

Very nice indeed! I admit I was skeptical, but a friend convinced me to try out the Pro version. I’m an audiophile and chose to go with the “Extremist” level with use on my J.River MC20 and my Windows 10 desktop. I use a USB DAC with CDs ripped to flac. The sound I’m getting is remarkable. Are there any settings I need to change in MC20 to take full advantage of sound quality?

Thanks for a great product.
Jim

James Frank

I installed the program and it works ok, noticeably superior sound stage in particular on low frequencies, congratulations !! greetings pgbell

Piergiulio Bellini

Dear Keetakawee Punpeng,

Thank you for your very quick response. I have installed Fidelizer Pro easily and use it together with Jplay and Tidal followed by two vst-hosts with an ambiophonic vst-plugin and an acourate-convolver-plugin respectively.

Before I have used your free version for a long time, which is very good. But your pro version enables my notebook and dac to reproduce music superbly.

With best regards,
Eckhard Winkelmann

Elke Winkelmann (JPLAY)

I figured out how to get the best sound possible on Windows if you use Fidelizer and sound pimp both it makes the sound sound amazing. I broadcast on vaughnlive.tv/thedogpound and have been told I have the best sound on vaughnlive is so crisp and clear. I just wanted to let you know this and also let you know your program is awesome thanks.

Lawrence Stover

Hello,

I have been using Fidelizer with Jplay for some time but Fidelizer Pro really makes the difference, i’m quiet happy with the result, the sound of my system really changed for the better.

Best regards

Joaquim Lola (JPLAY)

It definitely works! I can tell the difference after using it. Well done!
Thanks and keep up the good work!

Kwok Kwun Loke Ernest

Hello, fidelizer sounds great on my computer. Definitely takes the digital glare off and adds dimension to the wav files. Job well done, would like to stay in the loop for future versions, thankyou, regards, stacy.

Stacy Bragg

Thank you!. My first impression while listening is of greater fluidity of the music. I’m using in my office system a Vaio PC/JRiver21. I’ll come back for further advice from you

Kind regards,
Vlad

Vlad Adrian Manu

Hi

Initial results are very positive. The level of detail from recordings is noticeably improved but more importantly to me is the more relaxed presentation. Still plenty of attack but less fatiguing than before. I listen to my music on Denon D7000 headphones which are extensively modified with Lawton upgrades through a Burson USB dac/headphone amp. This system can be a bit bright in the top end at times but are better with Fidelizer in operation. My wife has been using my system as well as her dac is broke at present. She was also very impressed & was pleasantly surprised, so much so she played her Jeff Buckley album three times in succession before finally allowing me to get back on my system yesterday. I will be recommending friends consider using Fidelizer on their systems, it does represent a very cost effective way of improving computer based music.

Kind regards
Iain.

 

UPDATE

Hi
Just a quick message to let you know I have now run in extremist mode & was seriously impressed. Having read somewhere that there was only a small difference from the Audiophile setting I must disagree. My set up showed improved musicality & a smoother top end. My inspiration to improve & tweak my set up comes from a desire to replicate the feeling of seeing a live band, & to get as close to that feeling from my equipment. Fidelizer has taken me a lot closer to this & especially on live recordings where the sense of environment within the recording is now superb.

Kind regards
Iain.

Iain Harding

I have Fidelizer Plus on my Win 10 laptop connected to my DAC by USB and play from Roon also on my laptop.  My music files are on a NAS on my LAN which Roon recognizes. I control using the Roon app on my iPad.  It works very well and sounds wonderful especially with Fidelizer.

Roger Norden

Hi There Keetakawee,

Well I installed your software and it really improves the sound! The magnitude of the improvement was surprising and welcome.  You’ve done a great job with your software.

Cheers,
Billy

W.C.

Just purchased your pro as I dud like your free software. It did seem like it added a lot more soundstage and high end detail but tended to make the midrange vocals a bit grainy or harsh especially on extreme. I found audiophile setting to be the most pleasing. Trying to find the right balance for my system so I thought getting the pro would extend that capability and I felt that you deserve the $$ for the value you have provided to the audiophile community. I do like it very much but find myself using the workstation setting as it seems more liquid in the midrange and yet still improves the soundstage and somewhat high end. Not sure if there are any suggestions you may have but you asked to reply with feedback and wanted to do that and thank you for your passion for high fidelity and sharing it with us!

Regards,
Jim coyle

Jim Coyle

It works really well and I’m happy with it. Keep up the good work.

Glen.

Glen Walcott

Fidelizer PRO makes it sound more real and clear. The bass better now, it’s more powerful and accurate. But most importantly the overall sound is a little less “digital” which enhances my musical experience.

Best regards,
Rick

Rick Ursberg

Dear Keetakawee,

I’ve sucessfully installed your fidelizer pro and have been using them for quite a while. All i can say is that your product made the most significant improvement aside upgrading main hardware such like amplifier, dac, or speakers/headphones. As of now i don’t feel or incline to use CD transport as much as the sound being played by my laptop sounds much more acceptable, but has clear edge as it provides me with more convenience.

Jirapat Siridhasanakul

Thanks for the tips I think you are doing a great job, good luck. Very pleased with my upgrade to PRO. I try to convince as many people to try your free product all have really enjoyed the improvement, I shall keep promoting this on my FB Group High Fidelity Stereo, you are welcome to join and post any information on there about 1150 members but just into stereo and trying to get the best sound from whatever systems they have. I am always promoting digital files this is the future.

Paul MacMichael

We are flying higher than Baumgartner. In rare thin air of digital computer playback. Using Lampizator Komputer machine with Audiophile optimizer, fidelizer, 2012 core mode and the Bughead Emperor soft. This is as far as I dare to push digital playback to the limit. Pedal to the metal. Wooooowww…

Lukasz Fikus Lampizator (Audiophile Optimizer)

I don’t know how you can make this…. but you are a genius!! Great sound….!!

Bye bye,
Matteo….

Celli Matteo

Thanks Windows X,

Yes fidelizer Pro is doing what I want and I’m able to just sit back and enjoy the music.

Before I upgraded my PC from w8 to w10 I had manually disabled many services myself to optimise for audio but this was always a bit of a lottery, and I’d rather trust the judgement of someone like yourself who has done lots of testing and research in this area!

Cheers, Stuart

Stuart Hubbard

The Pro version works just great, big improvement on sound quality, and I am very very pleased 🙂
So glad I finaly got it, and it works so good..

Tried the network render setting so far,but will try MD with network support too.

Ove Bang Pedersen (JPLAY)

Thank you!

The sound quality is very good indeed in 6.9, and has been so even from version 6.5. That’s why I find it unnecessary most of the time to install new versions.

Fidelizer has taken the clean and accurate but a bit clinical sound of my Windows 2012/AO 1.30 and has made it more sweet and musical.

Best Regards,
Ari.

Aristeidis Mastrokostas (Audiophile Optimizer)

Hi

In reference to my previous e mail all is working great with jplay. A definate improvement in sound quality. Thanks.

J.P. (JPLAY)

Dear Khun Keetakawee,
I am just listening to my fully Fidelized 2PC setup and the sound really took a leap forward. It sounds incredibly detailed and clear, specially brass instruments. What a great piece of software.
I can hardly wait installing it on my three other PCs.
Many thanks for this
Cheers
Ernst

Ernst U Tschoepke (JPLAY)

I do appreciate your efforts to improve Fidelizer and send out the upgrades. Just yesterday I installed the Melodious MX-U8 on my streaming PC (and of course Fidelizer 6.9). I am really enjoying the music with each improvement.

Thanks!!!
Gil

Gil Patmore

Windows X

ITS sounds better then before I really don’t know what you guys doing this.

P.R.

Hi Keetakawee,

Thanks for the latest update and for Fidelizer in general, as it has made some amazing improvements in the sound quality I get from computer audio! 🙂

Kindest,
Dennis.

Dennis Stempher

Hi,

works flawlessly (with the custom mode)and as promised, less digital glare. This is the best sound on my system ever. J

For your information:
I’m using a laptop (with a non switching PSU) with 8GB RAM, Windows 10 (build 10240), XXHighEnd Player 2.02 with a “kernel streaming” driver to a Phasure NOS1a DAC.

Thanks

kind regards

Joachim

Joachim Wegner

Hi, thank you for program. Works very good. Much better then Fidelizer free version.

I used CAD pro optimization script, now I use fidelizer. Fidelizer pro better then cad pro..

setup:

notebook Acer Aspire E15, passive cooling, ssd, works on battery.
OS: windows 8.1 x64
Soft player: aplayer, wasapi exlusive mode, direct mode. plays .wav from RAM memory. All buffer set to minimal.
Hardware: Berkeley Alpha USB -> NAIM DAC

Ilja Nikitin

Thanks Keetakawee, with my single-PC setup, after some tweaking of the settings (AO 1.40, Fidelity Blade SQ 5.21 and JPLay 6.2), it works with Fidelizer Extremist mode and the first impression is impressive, even overwhelming…
Thanks!

Dennis Duchhart (JPLAY/Audiophile Optimizer)

Hi Windows X

I have now had a chance to listen properly with Fidelizer in Extremist optimisation mode + “music server with network support” and to try various different settings in both Jriver 20 MC and Jplay 6.2 with it. This is going from a single Windows 7 laptop via Oyaide Continental 5S silver USB cable to OPPO USB audio 2.0 DAC, controlled by Jriver’s Gizmo app on my android phone.

Firstly I tried various settings in Jriver. I tried Oppo Asio driver, volume set to OPPO and DSD bitstream in DoP format enabled. For Output Encoding I set it to 4xDSD in native format. Jplay was set to Oppo Usb 2.0 Asio driver (engine Xtream, Throttle on and Hibernate mode on).

Secondly I tried in Jriver, Oppo USB 2.0 Dac with Kernel streaming, for bitdepth I used 32-bit integer, buffering 0,50 seconds, volume OPPO BDP-105 USB audio 2.0 DAC, Output Encoding 2xDSD in DoP format. In Jplay, KS OPPO USB AUDIO 2.0 DAC, Engine Xtream, Throttle ON, Hibernate mode ON.

My preference in Jplay has always been Xtream with KS, but in the Asio settings there was a certain delicacy in the treble, which I hadn’t heard in KS. However overall it lost a lot of information that was in the KS settings. In the KS settings, the midrange and bass were far better and the treble was fine though less delicate. In KS the soundstage and depth were much greater. So I am using at the moment the KS settings.

Overall I would say that the Fidelizer Extremist settings have made the single biggest improvement in my computer sound. I think Jplay makes a significant difference as well. Jriver works well as a library and their Gizmo app makes control easy.

Perhaps you could let me know what you think of this? Any suggestions most welcome. At some stage I will definitely go the twin computer route, whether Windows 8, 10 or 2012 server.

Congratulations on a brilliant programme.

Best Robert

Robert Churchill (JPLAY)

Dear Windows X,

Thank for Fidelizer Pro. I have installed it and I am enjoying Roon with more clarity and detail.

Many thanks
Hossein

Hossein Faridzadeh

first i will thank you .for the great help on mail..

i have just now let the fidelizer start jriver,,,and let the maschin be a mediacenter—-and now i works with my music dvd

is it the setup as a mediacenter or is it jriver be started from fidelizer,,there make the difference ??

already know i will tell that i can not live without the fidelizer…

best regard Bjarne

Bjarne Hansen

Many thanks Windows X for the tips.

I have listened to many ‘so called’ audio upgrades over 25 years, including sometime spent myself in the high end audio business, and I cannot recall one as impressive as yours! I had a Japanese partner, who abandoned making turntables costing 40k US dollars in favour of adapting digital circuitry in relatively inexpensive CD transports and DACs 25 years ago as he knew this was the way to go. What you and others, like the guys at Jplay, are doing is taking audio reproduction to a new level of realism. We could not have imagined this even a few years ago. It is really a remarkable achievement!!

Robert Spencer Churchill (JPLAY)

Hi Mr. Punpeng,

just a few minutes before I heard the first tones with the Fidelizer 6.8 Pro in Extremist/Single Audio PC.
I have awaited a good improofment…..but my awaitings have been topped!!!

Thanks for this wonderful program. The next days, maybe next Wednesday,
after longer listening I will report more.

Now to my eqhipment: Source ” Delamar Audio Computer-Workstation 2012 ” ( selfassembled by Delamar advising, Windows Performence 7,8 !! )
wired by USB 3.0 to M2-Tech EVO USB to SPDIF Konverter with M2.Tech EVO externe Master)Wordclock and then sym. Digitalcable Sun Audio Cable into Lyngdorf DPA1 Digital Preamplifier with Roomperfekt Roomcorrektion. Then via Analog/sym. to the Ice-Power Amplifier direktly behind the Loudspeakers in 2.2 arrangement ( 1000W RMS for the Woofer and 500w RMS to the Satellite. The woofers are also the stand for the Satellite Lyngdorf C1. The woofers are selfbuild by the friendly allownes from Axel Ridtahler / Patentholder for RiPol ) and conzaines each side four 32cm Carbondrivers in a Case 80cm High, 40 cm Bride, and 40cm deep. Connected in shortest way by Triple-OCOS cable by Speakon 50Ampere connectors, Freqency range ( measured ) 22HZ op to 22kHz.

Well, my special thanks for thi equipment is for Peter ( CEO Steinway/ Lyngdorf ), Axel Ridtahler ( Patentholder RiPol ) and Holger ( Audio Endt )
and last not least Norbert aus Berlin for the excellent DC power-supply for the M2-Tech units.

Last not least Axels speach:” Musik is Art- Audio is Engineering”

Well, thanks and my expirience with Fidelizer in a few days.

Helmuth ( Physik-Engeneer )

Helmuth Bauer

Dear Keetakawee Punpeng,

Thanks for the full copy of Fidelizer Pro 6.8, the program works perfectly on my machine. This Fidelizer Pro, just as you said, it improves imaging and clarity of the sound also reduce glare in digital audio. I combined JPlay + Fidelizer Pro, and my whole PC (actually it’s a laptop) audiophile system just got better and better..

Great Works, keep it up.

Cheers,
Laurentius Keevin DK.

Laurentius Keevin Djoyo Kusumo (JPLAY)

hello again, I just wanted to say your pro version is awsome!! I just about gave up on computer audio(trying for 2yrs to get it right) music from my system has just come to life compared to before.As I enjoy album  after album!

D.C.

Thanks Keetakawee. I installed it a few days ago on my JPLAY Control PC, and the background got blacker, the soundstage became deeper, and everything became more focused. Overall a significant improvement, I think.

So, I recently ordered another copy for my Audio PC, and I look forward to installing it!

Many thanks for a great product!

Best,
Orkunt

O.D. (JPLAY/Audiophile Optimizer)

WoW! I am floored by the Pro version! Digging in to the settings now. How can I thank you? Ferrari? Lamborghini? Maserati??

Neil Small

Hi! Well, it works perfectly well. Instantly more transparent sound, clearer vocals. Good stuff) Keep it up!

Korbukov Nikita

hi Windows X
it’s all right here
Fidelizer pro runs in my notebook and the music sounds almost perfectly
Thank you

Greetings fron Buenos Aires

Eduardo Joaquim

So happy with Fidelizer Pro now!!! Sound is just amazing! Compared to friend’s notebook with Fidelizer free version and my notebook won!!! 🙂 A time ago with both Fidelizer free on our notebooks – they were almost the same sounding!!! Thank you very much for a great software!!! I’ll post info on our audiophile forum so people know and buy Pro version!!! 🙂

Nikita Kalagin

hi frd !
same causes, same effect… black background better lisibility especially in the highs, deeper image.
i rediscover the full potential of my rig…
thk so much for this huge job !

Best,
Eric.

Eric Therond

I upgraded to the latest version of Fidelizer Pro last night. I noticed a definite improvement over the previous version. I read that the latest version fixes an issue where some core optimizations were not able to be applied. There is a definite improvement on my system. Sound staging has improved, and vocals sound much clearer and more like they are floating in mid air versus coming from the speakers. I’m able to listen at higher volume with my headphones without ear fatigue thanks to improved fidelity.

If you are running Windows, and you haven’t tried Fidelizer yet, you owe it to yourself to give it a try. It’s really a fantastic utility that makes a really fantastic improvement in fidelity. It’s worth every penny to buy Fidelizer Pro. Windows X is a great guy and he makes good stuff. I would recommend fidelizer to anybody running Windows who enjoys audio. I’ve gotten a few people to install it and they are all happy.

Encarni Escobar

Dear Windows X,

Thanks for the update 6.8. Installed and running. UAC disabled. Very good sound, low-level detailing is clear and soundstage is wide and deep.

I listen to TIDAL via Chrome browser. Sound is output to ASIO BRIDGE ==> to JPLAY ASIO driver. Per Scenario 4A of User Guide, “Music Player Application” should be “Chrome”. I get best sound by leaving “Music Player Application” blank. Overall sound is more fluid, highs are better.

Best wishes,
Vasant Kaiwar.

Vasant Kaiwar (JPLAY)

Hi, I have an old, entry entry audio setup, but (with Fidelizer) improvement is tangible.

Thanks for Your work.
Bianchi Giovanni

Giovanni Bianchi

Hello,

Now it works 🙂

Thanks for your excellent support and help.

Fidelizer makes the sound more clear. It was well worth a little trouble.

Best regards

Jonas Ekroth

Hi Windows X,

I got everything working smoothly with my Windows Vista/Tidal desktop app/Asio Bridge/Jplay6 setup and are extremely happy with my Fidelizer Pro purchase! 🙂 The sound have become even more detailed with improved 3D sound stage and more detailed bass presentation. Your software clearly brings my computer audio to top level performance. I am truly looking forward to the coming update and hear what kind magic you have performed! 🙂

Kind regards,
Micael Corn

Micael Corn (JPLAY)

I would like to give a little feedback. It works!

The sound becomes more dynamic, you can better hear small details and all in all it is a more musically involving experience.

The effect is less pronounced with Workstation optimization more with Extremist optimization.

Jesper Asgaard

Hi Windows X,

Installation went flawlessly. I’m using a dedicated Windows 2012 Server R2 installation in Core Mode with AO 1.31 running JRiver 20 as a Mediaserver. This feeds the PS Audio Perfectwave DS with the Network Bridge. So I used the DLNA / Control PC Configuration in Fidelizer. The integration with Win 2012 and AO is perfect everything starts with a push of a button within 20-30 seconds.

The free version of Fidelizer already provided a nice improvement in focus and clarity. The Pro Version further improved the soundstage and the sound became fuller with more body.
What I have learned when I started with audio streaming is that computer audio is much more than delivering bit perfect information to a renderer (DAC). Streamer / Player Hard and Software is extremely important.

Overall a very nice improvement for a reasonable price. Looking forward to further improvements ;-)) .

Best regards
Kurt

Kurt Kuepper (Audiophile Optimizer)

2 thumbs up for this great sw,worth of money spent.
BR,
Chaiyuth

Chaiyuth Khanai

Hello Keetakawee, I understand, you are passionately committed!

I imagined I was doing or understanding something wrong.

First impressions of the Fidelizer optimizations are great! So much that I became suspicious! I witnessed big changes when installing JPlay a while back. I thought I reached the audio limit at that point! Fidelizer seems to have lowered the noise “around the music” so to speak, in addition to maybe correcting the speed of the clock. All I know is the music is waayyy more defined with truer voice reproduction! We all love it when our “best audio” becomes better don’t we!!, that’s the Audiophile’s quest and addiction. Thank you for the product!!

Kevin J. (JPLAY)

I must say I am impressed with the improvement over the Free version. A lot more details I can hear, and the bass seem tighter and better. I am sure I will discover more surprises as I use it more. Thanks for the wonderful product. It’s definitely worth the money getting the Pro.

Whiskey Yong

Thanks, works perfectly!

Regards,
Bruno Scarpini

Bruno Scarpini

My first brief listening impressions are that Fidelizer Pro has smoothed out the digital “edge” and enhanced the detail and sound stage width on the few tracks I had time to listen to. The difference is not huge (to my ears, with my system, in my room), but it is noticeable, and it has definitely increased my listening pleasure. Interestingly, with Fidelizer Pro in the mix, I now find the differences between JPLAY mini, JPLAY Streamer and BHE are much more subtle.

Cheers,
Bernie

Bernie Kunz (JPLAY/Audiophile Optimizer)

Bravo, Windows X! After installing FP on the second PC (control PC), I had a listen. It sounds as if my DAC had been upgraded to a much more expensive one. Now the setup is very much to my liking: sibilance (high noise) is mostly gone to the extent that I can freely turn up the gain knob without hurting my ears. Images are bigger, taller, deeper, and more palpable. Sweet and dynamic, very happy!

Contributing components and “ingredients”: Windows 8.1/Fidelizer Pro/Jplay/BHE/generic NIC/generic 16gb ram laptop as control PC.
Windows Server 2012 r2 core/AO/Jplay/Fidelizer Pro/generic USB to gigabit Ethernet adapter/generic 16gb ram laptop as audio PC.

Additional tweaks: battery or linear PSU powered Cisco switch (thanks hillbear), minimized tx & rx buffer settings (thanks Peter C, Fran, MJ), optimized BHE settings (thanks Minorisuke & Fran).

There are rooms for improvements: laptops to be replaced by fanless PC, audio grade NIC & USB cards, SSD, PPA or JCAT cables, just to name a few. But for now, the current setup really works wonders for me. Couldn’t be more grateful to the genius developers of Jplay, AO, FP, and BHE.

Bui Duy Thuan (JPLAY/Audiophile Optimizer)

Fidelizer Pro sounds incredible on Windows Server 2016 with AO! More of everything: silence, vibrant sounds and very nice sounds of instruments. Great. Thank you!

Regards,
Adrian Schmitt

 

UPDATE

All the people interested in highend digital reproduction must pay serious attention to your very cost/effective Fidelizer Pro! Sometimes we make some cables or others upgrades that don’t come not even close to the benefits we get if your ingenious Fidelizer Pro! We can’t forget that the for a good sound all begin with a good source: in our case the pc!

Adrian Schmitt (JPLAY/Audiophile Optimizer)

Hi Keetakawee

I have Fidelizer pro installed on both pcs and it sounds amazing….really, really, great. 🙂

Fran White (JPLAY/Audiophile Optimizer)

Hellow! It is work very well with Jplay. Sound is very good. Thanks.

SungRae Cho

Sungrae Cho (JPLAY)

Keetakawee,

I installed 6.7 and patched it. Oh my God!!! What an improvement!!! Played back Ramsey Lewis “Portuguese Love” that I listened to yesterday several times, I was blown away with the improved imaging, air around the performers, the individual voices are more distinct now.

Thanks for moving my listening pleasure to a new high!!

Cheers!!
Leon

Leon Motta (JPLAY/Audiophile Optimizer)

Good morning Keetakawee

I cannot thank you enough for making this software, I downloaded your software to my computer this morning and started listening to my some of my reference recordings. I honestly sit here with a tear dripping down my cheek listening to What a wonderful world by Stacey Kent it is so incredible and has changed the way I listen to music.

I am not a rich person but have saved many years to be able to buy excellent audio equipment to get the last drop of audio perfection out of my system. From your $65.00 download it is like buying a twelve thousand dollar dac that I recently bought and to be honest I got more out of the download than the dac. I read about people questioning if they should spend the extra money to buy the download or just use the freeware. Again I will be honest here, the freeware was nice but it had it’s good points and not so good points as far as audio quality goes. The download on the other hand is plain draw dropping it is that good.

You are more than welcome to print this email on your website if you like. Anyone whom is this talented to be able to give such a gift to the world from a download has not only my highest recommendation but also my sincere gratitude as well.

Thank you
Mark von Dohren

Mark von Dohren

Many thanks for the prompt response.

Fidelizer makes a very obvious improvement and I am so pleased with it that I will shortly be purchasing another licence for the second computer in our household.

Keep up the good work.

Best regards

Jonathan Bushell

Hi WIndows X,

Installed fidelizer pro and I love it.

Im using an intel pentium dual core PC E2200 small media center PC with spotify premium as the media library.
I am playing it using fidelify.
On that im using JPLAY6 (Alt version), for the asio driver im using the classic engine with kernel streaming on a windows 8.1 OS.
From USB I go to SPDIF using an m2tech Hiface EVO with a custom for audio build external power supply (on spikes haha).
My receiver is a Denon AVC-1SR and the speakers that I use are Amphion Creon ( laways use pure direct mode). Both 2.0 and 5.1 are sounding better then ever according to my ears.

What I fancy about fidelizer pro in my setup is the way you managed to get my vocals set just right (removing the harsness) without spacing (widening it to much). As im a singer in a band and im also the band mixing guy (using Cubase and a RME UFX soundcard (which is also almost perfect by itself)) I always found getting the vocals just right the most hardest thing to do in a mix. However for playback in my setup you nailed it!

Many thanks for that and keepup the good work!

Regards,
Glenn Adema

Glenn Adema (JPLAY)

After using Fidelizer Pro,the sound is more living,more expression and more dynamic.

Herbert

Thank you, great job for my “Control PC”
I noticed a big difference in outcome between the free version and the Pro, I love …
so I’ll spend a second order for my other computer “Audio PC” !!!
sincerely,

Gilles S.

Gilles Siembida (JPLAY)

Well got everything up and running on both OS and they sound great! I see now JRiver launches after the optimization. When I am using JStreamer with MinimServer how would I apply the fidelizer? I will tell you on my system the ladder sounds better then JRiver with JRemote!

Thanks a bunch

Tom Pinckard

Tom Pinckard (JPLAY/Audiophile Optimizer)

Hi,

Today, I reinstall the windows server 2012 and set SATA in AHCI. Bingo. The esata storage can start every reboot. Now I disable all the services in AO except WMI and I choose Extremist in Fidelizer Pro and JPlay in single pc mode. Now the sound is way better than yesterday I heard from partially optimized system. Thanks for your suggestion.

I’ll go the thread and see what they’re debating on.

Yes, of course. I’ll say something about my setup now with AO, fidelizer pro and HQPlayer on the forum, maybe computeraudiophile, too.

Best,
John

Sien Li (JPLAY/Audiophile Optimizer)

Your software is fantastic! I had been having trouble [I thought] with my Yulong DA8 DAC: on certain tracks and especially on Sarah MacLachlan’s “Angel”; there was a terrible distortion on vocal peaks. I discovered through research that this might be caused by Windows resource allocation, which my installation of Fidelizer Pro has decisively proven. Not only has this distortion been completely eradicated, but the digital side of my system sounds far better than it ever had before

Thanks!
Norm Armstrong

Norman Armstrong

Hi Win X:

A nice, very easily heard improvement. I would best describe it as a much more relaxed presentation, a layer of glare removed.

Thanks,
Bob

Bob Holzer

Hi Keetakawee,

Have been testing Fidelizer pro now for two days and I can only say that I am impressed. I am mainly listening through a highly revealing headphone (audeze lcd) system, which was already sounding pretty good, but your software gave a very worthwile improvement. Tonal colors are more natural, the last bit of harshness has dissapeared and it is now very easy to become completely immersed in the musical event. Just beautiful and often breathtaking

Thank you!
RobertvV

My system:
Zodiac gold dac with voltikus ps
audeze lcd-2 headphones
cardas golden cross ic
nbs and lessloss power cords
violectric V200 headamp
jplay 6

 

UPDATE

Hi Keerakawee,
Just want to tell you that I am more and more impressed by the results of Fidelizer pro…music sounds so much more like the real thing. It is like going from an average turntable to a real good one. You don’t have to have golden ears to notice the improvements and there are no trade-offs at all. I am very impressed!
regards, Robert

Robert van Velzen (JPLAY)

Thank you very much! Now my CyberLink Power 14 -player plays like never before.

Sincerely.
Slawek

Slawomir Maliszewski

Indeed working well and I pleasantly surprised at how much noise has gone away from the music…

Well done Sir.

Thank you

Lentini Davide

It works really well. Bravo!

Greetings

Paolo Patara

Dear Mr. Punpeng,

I just had to write and tell you how thrilled I am with your new Fidelizer Pro.

Not only does it provide some of the best sound I’ve ever gotten out of my system, but it does it in such a trouble free manner.

I’ve used many types of software to improve the sound of my setup, but too often they are like a fine race car; they’re temperamental and require a lot of care and maintenance to do what they do.

Your Fidelizer Pro just does what it’s supposed to do quietly and effectively, and it does it so WELL! Not only that, but I can use it to improve all my sound sources and not just my CD collection.

I’ve used your free version for several years and as good as it was, this is a huge step up in sound quality.

I’m a musician and could try to go into great detail about sound stage, imaging etc., but the fact is if I can’t just relax and enjoy the music then what’s the point?

Thanks to you and the good folks at JPLAY, I’m enjoying my music like never before.

A brilliant effort. Thank you for making it available. I look forward to your future developments and wish you all success.

Sincerely,
Wes Bush

Wesley Bush (JPLAY)

Thank you very much, it works really well and it seems to consume less resources than the normal version.
Not having to start it up each time is the main reason why I bought it, was not actually expecting better sound 🙂

But somehow the sound is also a bit better, fascinating (this with Windows 2012 R2 Core, CPU and RAM @ 800 Hz).

Dan Corlateanu (JPLAY)

Hi Windows X,

Thanks for the build, it has made a great improvement, especially picture and sound as I run video and audio through JRiver.

Corey Nixon

I downloaded and installed Fidelizer Pro.  Since I use a PS Audio Perfect Wave II, I set it up in Network Transport mode.  The sound improvement is greater than that of standard Fidelizer, a broad and high soundstage when I have set the absolute phase switch correctly.

Julius Moshinsky

Hi mr. Windows X,

I installed your software on my dedicated audio player. The system was already tuned by the Highend Audio Pc app from Audiophil together with Jplay 6 beta running on windows server 2012. Even on this fully tweaked system there was a remarkable improvement of the placements of voices and instruments after running Fidelizer, so the two programs probably perform different tweaks

Mike Agsteribbe (JPLAY/Audiophile Optimizer)

Hi Keetakawee

Well it is early days listening, but all I can say the Pro version, is just WOW! And by a considerable margin over the other versions, by some margin I might add… The pro version is worth every penny….

Immediate observations include, improved soundstage, better dynamics, textural tone and rhythmic interplay is a considerable improvement. Sublime bass extension. Vocals appear from a silent darker background with amazing depth. Believe me the system already sounded pretty damn good before the software tweaking. Fidelizer Pro turns my Mac Mini, running bootcamp and windows 7 64 bit, into a musical time machine…..takes the music where ever you want it to go.

The above is said in context, that the system was already revealing, room matched and well-balanced….excellent system upgrade, thank you!

2012 Mac mini, SSD, 8Gb Ram, Win 7 64 bit (bootcamp)
USB (Total Dac D1) out to Zodiac Platinum Dac 8x up sampling
Zodiac XLR analogue out to Trinnov Amethyst DRC
2.2 Setup feeding Linn Klimax 320A speakers and JL Audio Fathom F112 subwoofers

Alan Evans

Alan Evans

After the trial, the better it sounds Deezer is essentially similar to rip the CD, then listen with jriver + Fidelizer yet. (But do not always listen to music with hi-res File I) autonomous Fidelizer Pro worth it. Works like to change my wiring, cable yet some nice lines.

Surawit Jaruwanchai

I’m enjoying the software very much. Previously I had used Free Fidelizer in addition to running my PC with Win8 in safe mode and doing much of the service closures myself. I tried this same path with Fidelizer Pro but found that starting windows in normal mode and letting Fidelizer Pro do all of the adjusting by itself actually sounded better. I went back and forth several times to come to this conclusion, although I heard it right away the first time I listened.

I am listening through a PS Audio DS DAC and getting wonderful sound.

Thanks,
Will Glenn

William Glenn

Here are some comments after using Fidelizer Pro this week.

Am using an Acer i3 laptop – 8 gig ram – win 8.1 with an IFi Power USB. I found that after a clean install the Fidelizer Freeware program sounded even better. Now with Fidelizer Pro the sound quality has improved again immeasurably. With latency down to 4 on an i3 this is more than I could have dreamed for.

Korg Audiogate 3 Requires network support with Win 8.1 but not with Win 7? The soundstage appears big and highly detailed and although very impressive through the Korg DAC – it is tiring after a while. Being able to use DSD files created from my Korg MR2 recorder does give an edge when comparing commercial DSD file downloads to my files and the Fidelizer Pro provides even better SQ. Foobar 2000 Files now have a natural soundstage with a high resolution noise free background which allows the music to flow freely.

From what I have heard from Pro with this program it could become my de facto standard in the future. Jplay Still unable to play DSF files without stuttering. So after a few days experimenting with Pro I am delighted with the results. I congratulate you on creating a program which brings me the closest I have ever been to the music I love.

Kind regards,
David

David Lloyd (JPLAY)

Improvement on the audio pc is great, i have done a great jump forward. Thanks a lot ! When my new control pc will be ended, will sent you a new order. Good job!

Regards
Fred

Frédéric Cugnet (JPLAY/Audiophile Optimizer)

Hi,

Thanks for your fast service. Fidelizer Pro is working faultlessly and definitely a worth it upgrade to Fidelizer. Works great with JRiver 20 and allow to fully exploit the real potential of my HTPC.

On the audio side has upgraded the mid range to an absolute transparency, bass is tighter and fast as treble is extended and silkier. Everything is where it should.

Best regards,
Carlos

Carlos Espadinha

I am enjoying listening with Fidelizer Pro operating.  I don’t find I can definitely identify specific improvements but feel over all the sound is clearer and allows bigger stage with more precise instrument location.  Perhaps the bass is a bit tighter but the difficulty/delay of going back and forth with and without fidelizer running on my server limits precise comparison.

 

UPDATE

I had already installed AO1.31b9, JPlay 6, and the latest Minimserver and streamer on my W2012r2 server.  It sounded quite good.  But then installing this latest Fidelizer pro brought it up a whole level in clarity, imaging and depth.  Beautiful!

Richard Gerber (JPLAY/Audiophile Optimizer)

The enhancement of depth and the resolution of the complex layering of large-scale orchestral music came off stunning with Fidelizer.

It`s early morning here in Norway and I had a long night listening to a lot of my favorite artists. Jan Garbareck – Cassandra Wilson – Miles Davis – Bill Evans – Dire Straits – Shawn Colvin – Rachelle Ferrell and many more – they were all here in my living room and gave me a wonderful experience! Do I need to say more?

And all because of your Fidelizer PRO so thank`s to you Mr Keetakawee Punpeng for giving me this experience!

Kurt Vallenes

Hi Keetakawee,

Well… you nailed it! 🙂

 

As the Fidelizer free/pro – A/B test is very difficult to accomplish (just with two exactly equal computers), what I did was:

1.

  • Listen a FLAC file with Fidelizer 6.5 free
  • Listen the same track on the CD player

The difference between the two was obvious yet subtle (not night and day): the CD was more detailed, more accurate on the time domain, with better attack, and with a wider stage

 

2.

Reboot netbook, and install Fidelizer Pro: Extremist and Network Render, and repeated the previous test. Well, the difference between the FLAC – CD, is now more subtle then ever! The precision in the time domain improved, the clarity also, the stage is similar to CD. Despite I believe the CD still have a little more attack and transparency (very subtle), my computer audio source never sounded like this before!

 

I know that my configuration (Network render) isn’t the best for top audio performance, and I believe that if we choose “Media Server” something is improved. But this setup is the best for my needs…

 

In overall, what you did is amazing! Definitely your work must be rewarded.

 

Regards,
Carlos A.

Carlos Aniceto

“Hi,
Thanks for getting the program to me so quickly. I have had a few hours with it this this evening & WOW!! what a difference compared to the free version. I’m so glad I upgraded & I will probably go Pro next month when I have the money. Is it correct that I could do that for an extra $30? The bass is deep & tight now & the soundstage is wide & precise. The shear amount of small details i’d never heard before was amazing even though I have a decent system. Thank you for you hard work in creating this program & improving my listening experience by such a large margin 🙂

Mike.”

After upgrading to Fidelizer Pro

“Much more subtle changes this time but very nice one’s. The soundstage is fantastic, wide & 3D. Also, vocals are brilliant. Lyrics I could never make out are now clear to me without straining to grasp them. It’s taken the last bit of harshness from the treble & as a result female voices are smooth especially sopranos. I just want to keep playing my music now!! 🙂

Mike.”

Michael Ashton (JPLAY)

Excellent upgrade on your freebie! on mini 8 VHD of AOed Win2Go Server 2012 R2 Essentials OS bootloaded into RAM, player Lekt.exe out through RME HDSPe card. More detail, dynamics, everything – far exceeded my expectations of what is possible from red book.

Stephen Dengel (Audiophile Optimizer)

I am very happy to get the Pro version without any regret, and 100% money worth. Thumb up. There is improvement with subsonic low and high frequency with much purity sound.

Alfred Chen (JPLAY/Audiophile Optimizer)

Focus and definition improved with an added bonus; a slight midrange hardness I have heard in JRiver was now gone.

I think it is the best sound I ever heard with my Audio setting. Very clear background and close to perfect image (I assume there is no perfect with Audio since every new technique comes). Especially, when I listen big scale symphony like Mahler Symphony No.2, I can hear different stage of music. Better dynamics and better image. Thank you for great software.

thank you very much for your quick response. I have just installed the Fidelizer Pro and it works just as expected. I am really impressed, how much difference the Fidelizer makes to digital audio. I always disliked the “digital sound” with its glare, graininess and simply sterile artificial sound. I even changed my music selection according to avoid the bad effects as much as possible. No more great female singers and so, because digital it just made it impossible to hear. But NOW THE MUSIC HAS RETURNED and I can listen to what I want and not what digital can reproduce without causing just pain in my ear.

I was using a pretty expensive vinyl record based LINN hifi system (with Linn LP12 record player), before having switched to digital and always missed something. Well, it’s here again, sounding like a very very good analogue recording to my ears – thank to Fidelizer Pro!

Peter Böhm

Thanks for the 6.1 update to Fidelizer Pro. I tried this tonight and I am very impressed with the additional texture and detail this now brings to instruments. I have a JPLAY control/audio pc set-up and I have posted my impressions on the JPLAY forum (I am rocketiii).

Many thanks for your work,
Paul

Paul Fuller (JPLAY)

After several hours of using Pro, I’m very pleased with the purchase and am happy funding your endeavor.

I’m using an Apple Mac mini running Bootcamp, Windows 8 and JRiver Media Center in a headless configuration using JRemote.

Mike Bieda

thanks so much for generating the program so quickly this (my) morning. I downloaded in the meanwhile and did a bit of listening – so far: absolutely great! Even more transparency/veil off/details compared to the trial version and it feels like having a more precise low end. I never got close with my high-end CD player to what a properly setup and fidelized PC via DAC is capable of doing.  Late night listening will follow, the first glimpse is great!

Michael Sauter

I have used Fidelizer before (F4 & 5) with good results, see copy of a post from JPLAY below. After more listening today F6 is clearly a further improvement. F5 Extremist did not really work for my system, but with F6 the Extremist option provides a further significant improvement in SQ.

Kjell Nedrebo (JPLAY)

Great product! Really makes more different to the sound with my setup than ‘replacing all the cables’ Very pleased!

Juan Diego Puerta Marin

I managed to get the program installed before I left for work. It sounds really good…smooth and musical.

John Kessel

Hello,

Small return on tapping.

I am currently running with Jplay6 beta5, simple PC and fidelizer pro 6.5 under Windows 8.1, Intel I7, 4 double cores at 2.2 ghz. To me, your optimization software is a must, I did not get better, my pc runs with an impressive silence, no breath, no fan, nothing but great music, which is a tour de force with such a processor.

I did a demo with audiophile friends, all agree, is excellent. One can even compare, WAV, FLAC, AIFF and AIFF … winner for me.

Joseph and Marcin are also very, very good job. Too bad you can not get together to assemble a pc marketable audio configuration, I’m interested.

I read all the post about you and confirm you are very good.

Sincerely,

Gérard MAÎTRE

Gérard Maitre (JPLAY)

I’ve installed Fidelizer pro 6.1 on my HTPC and everything is OK.
Audio is very good, as I’m using JRMC 20 as VDM driver and DVDFab plyer for playing DVD or Bluray.
This little media player has a very good video quality equal to JRMC with Red October HQ filter and it offers menu for Bluray.

For the moment I’m using Audiophile level for Media Center (HTPC, Audio/Video/Network player), black are deeper with better definition and more “grain”.

Dominique COMET

Great job! I also had my brother & friend buy your product system never sounded better  fast service.  Dean from Canada! They are also very very happy with Fidelizer Pro worth every penny!!!!!!!!!!!!!

Dean Labossiere

This seems to be working better, and it sounds better than ever. I think that if you don’t select the device you are using for sound as the default, it will be shut off. Only got to listen to it for an hour. Another step closer to analog with the best aspects of digital included. Lots of space and subtle details. You do know how to listen. Can’t wait to get my tricked out Geek Pulse DAC with 82 Femtosecond clock. Still need Fidelizer if the jitter is modulated by the computer.

My reaction to listening to Fidelizer 6.1 Pro is being relaxed, closing my eyes and listening. I can’t remember being able to do that before. Job well done.

Brad Connery (JPLAY)

Hi, Just loaded it and have it running now. It sounds great. Seems very smooth and resolved. I am running in Audiophile mode/JPlay local.

Bob Flood (JPLAY)

 

After reading those wonderful stories, you can consider applying Fidelizer Upgrade Program here. If you’re using upgraded Fidelizer software and currently enjoying good music, please share your story with us.