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

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

Thanks a lot – the sound is super

Music has become even more fun.

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

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

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.

Hello Keetakawee,

I’m very happy, thank you!!

Johann

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

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

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.

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

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

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

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.

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

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

It’s brilliant. THANK YOU.

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

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

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

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.

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!

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

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!

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!

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.

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

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.

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.

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

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

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

Dear Keetakawee,

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

Best
Stefan

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

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

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

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

Hi there!

I love the outcome! HUUUGE difference!

Thanks a lot!

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

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).

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.

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

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

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

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.

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

Regards,
Dave

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

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.

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

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

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.

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

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. 🙂

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

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

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

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!

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

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. ?

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

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

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!

Hi,

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

René

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

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

Regards
Jarek

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

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)

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

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

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.

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.

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

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

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

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

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

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

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.

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.

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.

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

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!

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.

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.

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

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

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

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

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

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

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

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

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.

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

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

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

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

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.

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

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

Thanks Keetakawee,

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

Regards
Kevin

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.

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.

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.

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

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.

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!

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.

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

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

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

Hi Keetakawee,

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

Regards,
Sander

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

KOHEI YAMAMOTO

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

Hi,

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

Regards,
Harry

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

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

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

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

Hi Keetakawee,

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

Thanks,
David

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.

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

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

strong hug.

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

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!

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.

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!

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

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

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

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

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.

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

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

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)

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.

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

Benjamin

Hello Windows X,

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

Thank you,
Anish

Hi,

Thanks for sending, sounds fantastic, I love it!

Thanks!

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

Keetakawee,
I have been enjoying your program. Thanks!

Bob

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

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

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

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

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

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

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

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

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

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..

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

Ciao
Andrea

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

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

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

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

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

Best Regards from Spain.

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.

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.

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.

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

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.

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

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

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 🙂

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

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

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!

It works excellent and a very good sound.

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

Thanks so much,

Jim

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!

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

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

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!!

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

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

???

Regards, Shane.

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!

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

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.

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

Dear Windows X,

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

Best Regards,
Andrew

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!

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.

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

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

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

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

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

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

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!

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

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

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

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

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.

Dear Keetakawee Punpeng!

Thanks a lot!

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

Thanks again,
and best wishes,
Uwe

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

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.

Hi,

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

Congratulation,
David

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

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

( : Henri Jimmink : )

Dear Keetakawee,

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

best for you
W. Zöllner

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

Best Regards
Dinah

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

hi team

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

tks

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

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!

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!

It’s all installed and sounding fabulous

Cheers

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.

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

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.

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

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

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

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

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

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.

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

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

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

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

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

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.

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.

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

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

Glen.

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.

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…

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

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.

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

Windows X

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

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

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!

Dear Windows X,

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

Many thanks
Hossein

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!!

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.

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

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

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!!! 🙂

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.

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

Thanks for Your work.
Bianchi Giovanni

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

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

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!!

Thanks, works perfectly!

Regards,
Bruno Scarpini

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.

Hi Keetakawee

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

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

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

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

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

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

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

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

Well done Sir.

Thank you

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

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.

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

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.

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

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

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.

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.

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!

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.

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.

I managed to get the program installed before I left for work. It sounds really good…smooth and musical.

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”.

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.