Hi
Just thought I would drop a email and say a big thank you for Fidelizer Pro.
I use it with Foobar2000, Process Lasso and Jplay on a stand alone Windows 10 PC. My DAC being a J Kenny Ciunas.
I had used the Free Version of Fidelizer, and l can happi…

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

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 th…

Hello,

Small return on tapping.

I am currently running with Jplay6 beta5, simple PC and fidelizer pro 6.5 under Windows 8.1, Intel I7, 4 double cores at 2.2 ghz. To me, your optimization software is a must, I did not get better, my pc runs with an im…

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. …

Hi Keetakawee,

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

Best regards and a happy 2018!…

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

Dear Keetakawee

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

Best Regards
Andre

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

Thank you for your assistance!
I have been using the free version for many months and it solved all my dropout problems and significantly improved my PC performance when using MediaMonkey. I had tried shutting down apps and Windows services manually …

Hello mister Punpeng,

Just did an upgrade to PRO!

Hope to hear from you soon, very pleased with the audio “upgrade” on my computer!

Greeting,

W.L. Van Winsen

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

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

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 …

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,
Pi…

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

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

Bye bye,
Matteo….

Thanks Keetakawee,

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

Regards
Kevin

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

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

Hello Keetakawee!

I am actually quite happy with the performance so far.

Kind regards,
Stiliyan

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

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 …

Dear Keetakawee Punpeng,

I did some listening yesterday after installing FPro. My aim has been to find a better alternative to Mac/audirvana which I have used for several years. The two things I like about Audirvana are playback from RAM and shutting…

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

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

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 instal…

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 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.

Mr. Non,

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

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

Keetakawee,

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

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 fil…

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

Thank you,
Tom S.

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.

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

Hi, Keetakawee

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

Thank you very much

Best regards
Luca.

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 fi…

Dear Keetakawee,

You’re great, you did it again! Thank you very much. The new version (8.10) of Fidelizer Pro is outstanding. I listening to music from Tidal with Roon on an old audio pc. And now, it sounds more better than ever before. Like a high e…

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

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

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

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 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…

Hi Keetakawee,

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

You really did a good job, Kai

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 t…

Hi Keetakawee,

I have no idea how effective competing software offerings are, but your Fidelizer Pro software program is seriously effective and whose improvements are patently real. I mean, enjoyably real improvements that are not subtle at all. Wit…

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 …

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

Cheers,
Luis

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

I wouldn’t recommend Free version, it may s…

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

Thanks

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,

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

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, alth…

Just purchased your pro as I dud like your free software. It did seem like it added a lot more soundstage and high end detail but tended to make the midrange vocals a bit grainy or harsh especially on extreme. I found audiophile setting to be the mos…

Hi Keetakawee,

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

Hello Keetakawee,

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

Thank you.

Kind regards,
Andrea

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

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 J…

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.

Thank you!
I have listened to the PRO version of Fidelizer for 5-6 hours of various types of music.I was surprised at the free version of Fidelizer and how much it increased the enjoyment of my music. I am now even more convinced that my music sounds…

Awesome, thanks! I could hear the difference that Fidelizer Plus so much so that I upgraded to Fidelizer Pro.
The results blew me away and gives a punchy new life to my Yamaha analogue stereo and lastly TV to line in.
Smooth digital sound analog life…

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 …

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,

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 supe…

Many thanks for your quick and efficient service.

Listening is as happy as possible. 🙂

Regards,
Claude

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

You achievements with Fidelizer is nothing than astonishing. Big bow and for your product and your dedicated customer…

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

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 h…

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

Regards,
Eugenio Fenocchi

It`s early morning here in Norway and I had a long night listening to a lot of my favorite artists. Jan Garbareck – Cassandra Wilson – Miles Davis – Bill Evans – Dire Straits – Shawn Colvin – Rachelle Ferrell and many more – they were all here in my …

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 u…

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

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

Regards
Jarek

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

Hello,

Sorry for taking so long to get back to you. I just wanted to let you know that I am very pleased with Fidelizer: a few weeks later, my hifi suppliers were at home to deliver my new Mark Levinson amp and they had goosebumps when we turned on t…

This is a report of our first experience with Fidelizer.

I had heard of a few optimizer programs designed to improve computer audio sound, but I was sceptical. After looking around on the web I found an interesting product called Fidelizer. I decided…

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 var…

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

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

Thank you for developing FidelizerPro, I’m …

Dear Keetakawee,

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

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

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 penti…

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 …

Hello,

I have been using Fidelizer for a month now and after this period my feedback will be no surprise : this is truly a great product. For some years now I’ve completly shifted to streaming music from Spotify to Deezer and now Qobuz. The convenien…

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

I have been testing Fidelizer for months and I can assure you that the PC with Fidelizer plays music like a very expensive CD player even with non-audiophile files like Spotify’s, therefore, you could offer Spotify to pair it with Fidelizer. If it’s …

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

Keetakawee,

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

Kind regards,
Peter

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

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 must say, this is really an improvement. I run an Altec A7 bi-amplified horn system with single ended triode amplifiers. It is extremely revealing. I listen to classical/opera. Solo voice is an extreme test.
Your software made an improvement that i…

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

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

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

Scott

Makes a huge difference in sound quality!

Thanks,
John

Hello Keetakawee,

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

Hi,

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

Regards,
Mark Wisniewski

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.

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.

Hi Keetakawee

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

Immediate observations include, im…

Everything done well and sounding great!

Thank you,
Kohjin

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 playba…

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 …

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!
…

I figured out how to get the best sound possible on Windows if you use Fidelizer and sound pimp both it makes the sound sound amazing. I broadcast on vaughnlive.tv/thedogpound and have been told I have the best sound on vaughnlive is so crisp and …

Hello Windows X,

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

Thank you,
Anish

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

Hello,

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

…

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 …

thanks so much for generating the program so quickly this (my) morning. I downloaded in the meanwhile and did a bit of listening – so far: absolutely great! Even more transparency/veil off/details compared to the trial version and it feels like hav…

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…

Hi Keetakawee,

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

My system: Asus laptop, Chord Mojo, Hypex Ncore40…

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…

Thanks for answer me quickly, yes bouth disc run in the same machine.
I’m really happy with the new sound, I thought that it’s very diffucult and expensive get better sound in my equipment, I have a metronome C2 tube dac, a Jadis JP2 tube preamplifi…

Keetakawee,

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

Thanks,

Milind

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) …

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 t…

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

hi team

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

tks

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

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

Kind regards,
Vlad

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

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 imp…

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

Thanks RWong

Hi Keetakawee

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

Hi Win X:

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

Thanks,
Bob

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 P…

Hi Windows X,

I am the happy owner/user of Fidelizer Pro and I have a quick question. I installed Fidelizer Pro on my recording studio computer and I’m MORE than pleased with the sound quality. It makes a VERY noticeable improvement in both studio mo…

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

SungRae Cho

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

Hi,

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

The result surprises me. Sound is really bette…

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

Hi, finally is worth the effort, Fidelizer is rewarding, easy to use and also easy to notice the upgrade, when purist is awesome!.
Also I am done with Foobar, I have nothing against their app as a remote!
Only is need now, to install Asio drivers for…

Windows X

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

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

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

It’s all installed and sounding fabulous

Cheers

Hi Keetakawee, I have been using Fidelizer on my Intel NUC using Roon with great results. The sound improvement is similar to upgrading a power supply to a streamer, DAC or similar with more detailed coherent sound with more bandwidth all for much le…

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 e…

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

Well done Sir.

Thank you

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

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

But somehow the sound is also …

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

Have a good day saluti Hans

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!

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 p…

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

I successfully installed it on my HTPC and I’m running it as Audiophile / Media Center. First …

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

KOHEI YAMAMOTO

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

( : Henri Jimmink : )

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

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

Gilles S.

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

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 th…

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 regis…

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

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 gl…

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

Many thanks for your time in your responses – I do appreciate it ver…

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…

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

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

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

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.

Be…

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

Thanks Keetakawee, it’s sounding better than ever !

Alistair

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

Thanks!
Al

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, S…

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 separa…

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 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 …

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

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

Thanks!!!
Gil

Dear Windows X,

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

Best Regards,
Andrew

Hi!

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

Best, Ruben

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

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

is it the setup as a mediacenter or is it jriver be started from fidelizer,,…

I think it is the best sound I ever heard with my Audio setting. Very clear background and close to perfect image (I assume there is no perfect with Audio since every new technique comes). Especially, when I listen big scale symphony like Mahler Symp…

Hi Punpeng,

I installed Fidelizer Pro last night and i could say that if brings a significant improvement on the sound of my system. Coming from the free version i did’nt expect the improvement to be compelling. It open up the sounds with bags of det…

Good morning Keetakawee,

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

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 backgrou…

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.

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

Hi,

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

Thanks!

Thank you Keetakawee!

There seems to be a difference. The big picture doesn’t change at first listening, but there are changes in the details.
There is more air (or room information), and the instruments are focused better, having more contour, or mo…

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

Hi, Just loaded it and have it running now. It sounds great. Seems very smooth and resolved. I am running in Audiophile mode/JPlay local.

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

Ciao
Andrea

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…

Dear Keetakawee Punpeng!

Thanks a lot!

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

Thanks again,
and best wishes,
Uwe

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 …

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

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 …

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,…

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 lotte…

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 fl…

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 Windo…

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

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

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

Sys: JRiver, Jplay, Empirical OffRamp5 with robust powersupply,
…

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

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

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

Regards,
Robert van den Berg

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

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

I listen to music through headphones (neighbors, you know) and have put together a Schiit stack (Modi, Magni H) with decent cables and I have headph…

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 …

Hi Keetakawee,

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

Thanks,
David

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

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

I’m using a Windows 7 PC with a SOtM tX-USBexp USB PCIe Card sending audio via USB to a IFI IUSB 3.0 which then sends audio to my Emotiva DAC. I was previously using asio4all a…

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.

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 …

Hi,

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

I am simply not able to accomplish my usual listening tests because
whatever I am listening to, I kee…

Great job! I also had my brother & friend buy your product system never sounded better  fast service.  Dean from Canada! They are also very very happy with Fidelizer Pro worth every penny!!!!!!!!!!!!!

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…

Hello Keetakawee,

I’m very happy, thank you!!

Johann

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 Wo…

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 seeme…

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” playi…

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 a lot – the sound is super

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 t…

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 …

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

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

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.

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

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 insta…

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

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!

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

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 qua…

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

Benjamin

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 Fi…

Hi there!

I love the outcome! HUUUGE difference!

Thanks a lot!

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

Hallo,

it works perfectly !! double thumbs up !!

Thank you

Best regards – Bernhard

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. Th…

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 s…

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, cabl…

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

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

Best Regards,
Rosario

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

Hi Keetakawee,

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

Regards,
Sander

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

Hi Keetakawee

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

Best
Radek Bujnarowski

Thank you brother the sound was very good.

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

Thanks so much,

Jim

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

Best regards,
Rick

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 …

Dear Keetakawee,

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

Kind Regards,
Petr M.

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…

I am listening to my first album since installing Fidelizer Pro on my Samsung netbook running Windows 10 and JRiver MC21 through a SoTM dx-USB HD interface, USB Disruptor power supply and Cambridge Audio DacMagic. I can hear more depth, clarity, vita…

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

Hello again,

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

You really are in service for a…

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-Deskt…

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…

Hi Keetakawee,

Jee, men. I am so enjoying the music now with Fidelizer. I should have discovered it much earlier. You really did a great and thankful job!! Really thanks for that! And, yes, I am spreading the news. My gear is a media PC feeding via U…

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

Regards
Ladislav

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

Hi Mr. Punpeng,

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

Thanks for this wonderful program. The next days, mayb…

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

Regards,
Adrian Schmitt

 

UPDATE

All the people interested in highend digital reproduct…

My first brief listening impressions are that Fidelizer Pro has smoothed out the digital “edge” and enhanced the detail and sound stage width on the few tracks I had time to listen to. The difference is not huge (to my ears, with my system, in my roo…

Hi,

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

Regards,
Harry

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 witho…

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

creditable work

thanx a lot
regards

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

Hi,

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

Hi again!

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

First impression is the voices, so clear and stand…

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 theor…

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

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

The effect is less pronounced with Workstation optimization more with Extr…

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 M…

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

Best,
Jim Kane

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

Thank you,
ákos sebestyén

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

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

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 s…

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. ?

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

Best Regards from Spain.

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 mo…

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

Hi,

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

Thank you very…

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

Your software clearly and definitely improves recording quality.  A lot. Your software is superb even with som…

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 l…

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

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 …

Hi,

Thanks for sending, sounds fantastic, I love it!

Thanks!

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

My best!

Keetakawee,
I have been enjoying your program. Thanks!

Bob

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

Dom

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.

M…

Keetakawee,

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

Mike

Hi Keetakawee,

Thank you. I have tried your free version few times in the past, right from the first versions when you released the program. I’ve never been able to hear clear difference made by it but yesterday evening when I auditioned once again, …

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

Best,
Eric.

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

Thx fo…

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

Thanks for Your work.
Bianchi Giovanni

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…

Absolutely love the sound when using Fidelizer Pro! We use it to fidelize a windows 11 mini pc running on a linear power supply, using Audirvana as music player. It is excellent! Love the ability to dedicate cpu cores to audio specific tasks while li…

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

Hi Windows X

Thanks for the update.

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

Keep well
Malcolm

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

Best regards,
Cem Çelebioğlu

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

Regards, Lars

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 cre…

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…

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

Hi Lucifar,

I use Fidelizer since 2 years and it’s a great work ! For me, the sound improvement it’s better than Jplay alone. I try some linux solutions, Volumio with Cubox, Daphile on my PC. Volumio sound great but it’s complex for me and i prefer F…

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

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…

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

Dear Keetakawee,

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

https://forums.stevehoffman.tv/threads/…

Lucifiar,

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

Thank …

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

Hi!

Thanks, i installed, and works.

I not heared too big diference compared to before installing status. It is more analogue, better detail, but this diference is tot as big as i readed from forum and webpage.
I have not time to test it really in dee…

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

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
Rom…

Tanks for your Fidelizer update 7.3
This is a big upgrade. The imaging is more precise. Complex orchestra are more more clean less comfuse. The bass are better, the medium are better.
The sound is more dynamic and i understand more lyrics.
The only l…

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 th…

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 spac…

Dear Windows X,

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

I listen to TIDAL via Chrome browser. Sound is output to ASIO BRIDGE ==> to JPLAY ASIO driv…

Hi Keetakawee

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

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

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

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

Dear Keetakawee,

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

Best Regards.
Irek

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

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 ca…

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

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

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

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

Yanai Lahav

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 t…

Dear Keetakawee,

Many thanks for your excellent software. I have a high end Lindemann 820S SACD player but the weakest link is in the pressing and manufacturing of the CD and the optical readout. I was always convinced that once you were able to take…

Dear Keetakawee,

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

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

I was skeptical of this. Although it had many good reviews. So I purchased it. Let me tell you. With the correct settings for your system. It makes a remarkable difference! YMMV of course. I was pleasantly amazed. I am not sure how it does so, but I …

Nice software with a good improvement on my audio system

Regards
Lmal

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 …

Hi Windows X,

I’ve installed Pro and have been testing things with it. My computer is general purpose though not heavily loaded. I use Maple18 on it but it seems to run ok even with audiophile settings engaged, and I’m not noticing my updating or my …

Hi Keetakawee,

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

Heiko

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

Thanks, works perfectly!

Regards,
Bruno Scarpini

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 …

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

Sounds Great!

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 …

Absolutely fantastic thank you

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

Greetings!

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

Very great Fidelizer Plus..regards from Firenze Italy 🙂

I have installed the Fidelitzer Pro, everything functions easily.

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

thanks
Silvio

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

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 capabl…

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 …

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

Greetings fron Buenos Aires

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 se…

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

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

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 …

Hi Punpeng!

I’m impressed, just could not believe the effect of the software will be so great. Since the first moment they were immediately noticeable improvements, the scene is darker, more air between instruments, three-dimensional sound image, unb…

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

Regards,
Dave

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

I am enjoying listening with Fidelizer Pro operating.  I don’t find I can definitely identify specific improvements but feel over all the sound is clearer and allows bigger stage with more precise instrument location.  Perhaps the bass is a bit t…

Hi,

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

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

Only one word: Incredible improvement also over Plus Versi…

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…

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!

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

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 w…

Thank you very much. Recently placed new motherboard, ssds, cpu and ram (i9 12900k, Asus Z690 Pro Gaming D4, Western Digital Sn850 Nvme 7000, Kingston Fury Beast DDR4) and can hear some improvement, sound became deeper basswise. Still Fidelizer is a …

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

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

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…

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…

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 impro…

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, upsampli…

Keetakawee:

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

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

I will report t…

Dear Keetakawee Punpeng

Thank you very much for your excellent product “Fidelizer Pro” you sent to me. After downloading the file, I immediately installed it on my audio PC, part of my dual PC audio system. It has worked miraculously and I have f…

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 o…

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 b…

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

Hello Windows X,

I recently purchased and installed the PRO version 6.14 and I’m very satisfied …. One of the features that I really like is that when you turn on your PC, automatically starts fidelizer;
The end result is then what I had already warn…

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

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 playe…

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…

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 –…

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

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

Glen.

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, cu…

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 …

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

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

Hi Keetakawee,

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

I am using JPLAY so I choose Long/Variation prior…

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 prett…

Thanks for the 6.1 update to Fidelizer Pro. I tried this tonight and I am very impressed with the additional texture and detail this now brings to instruments. I have a JPLAY control/audio pc set-up and I have posted my impressions on the JPLAY forum…

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

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!

Good Morning,

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

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

Best regards,
Johannes

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

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

Hi Windows X

I have now had a chance to listen properly with Fidelizer in Extremist optimisation mode + “music server with network support” and to try various different settings in both Jriver 20 MC and Jplay 6.2 with it. This is going from a single …

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.

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).

…

Dear Keetakawee,

Further to my earlier email below, in which I said that, having got everything working again, I would do listening comparisons between 6.11 and 6.12, I thought that you might like to hear of my impressions and so, here are my comment…

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 works excellent and a very good sound.

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.

Hello Keetakawee!

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

Sincerely, Terekhov Igor

Dear Windows X,

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

Many thanks
Hossein

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

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

Sincerely.
Slawek

Hi Keetakawee (Great name!)

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

Regards,
Bob J

Hi Keetakawee,

Thank you for sending me the download link for my copy of Fidelizer Pro.
I downloaded the software and installed it into my AUDIO PC this morning without any problems and the product is running fine.
The result is pretty spectacular.
1…

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 t…

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

Hallo Lucifiar,
Congradulations!
Fidelizer 7.0 is already running. No problems with installation, all functions still working.
And it is a step to more music again. Music comes more relaxed, more “analog”. Most improvement I can hear at soundstage. T…

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 per…

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…

It’s brilliant. THANK YOU.

“Hi,
Thanks for getting the program to me so quickly. I have had a few hours with it this this evening & WOW!! what a difference compared to the free version. I’m so glad I upgraded & I will probably go Pro next month when I have the money. Is it cor…

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 clear…

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

Thanks for your help to down load my sof…

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

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

Hi WIndows X,

Installed fidelizer pro and I love it.

Im using an intel pentium dual core PC E2200 small media center PC with spotify premium as the media library.
I am playing it using fidelify.
On that im using JPLAY6 (Alt version), for the asio dri…

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

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 d…

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.

Dear Keetakawee,

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

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 …

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 …

Dear,

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

Kind regards,
Edo van den Broek

Sounds good…very very good!

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

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 soun…

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

Hi Keetakawee,

I just wanted to say thank you for this wonderful software! I started out just using one installation on the “streamer/endpoint” PC in my listening room. I upconvert all files to DSD512 to feed a T+A DAC 8 DSD. Since I started doing th…

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

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 balanc…

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 m…

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’…

Hello Keetakawee,

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

The sound heard now is more and very realistic, I could sett…

I am really enjoying especially in combo with a Jitterbug.

Hi Keetakawee,

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

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.

Great product! Really makes more different to the sound with my setup than ‘replacing all the cables’ Very pleased!

Egregious Windows X,

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

Thanks

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,

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

Regards
George Johnson.

Thanks for the explanation Keetakawee!

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

Thanks again!

Jeff

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

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

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

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

setup:

notebook Acer Aspire E15, passive cooling, ssd, works on battery.
…

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/he…

As always I find the flaw: NOT natural sound. A purely aseptic environment. resampling: NEGATIVE + USELESS. It is first to listen to Spotify (IDENTICAL philosophy and mobile use). FIDELIZER PRO: the TOP at the moment; It is NOT possible to create a d…

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…

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…

I installed Pro and with my set up ( Chord Mojo , Beyer T1 , Meier Corda Classic ) I notice the improvements. It is amazing how a recording of low to medium quality can sound much better. In fact the recording is likely of a better quality that was n…

The latest update / version installed. I am using this on a fanless windows 10Pro pc. Only Roon Server is installed here. This is then connected to the dCS Vivaldi DAC with a Shunyata Sigma USB (soon the Omega USB). With the first notes I immediately…

Hello,

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

Thanks
Tomek

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 m…

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 b…

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

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

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

Dominique Paré

Hello sir Keetakawee Punpeng

Allow me to thank you for the continued improvement of excellent sound. Especially the last two Fidelizer versions 7.3 and 7.4, allow me even with modest instrumentation, sample the quality of the actual Highend. Compared…

Hi,

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

Dear Keetakawee,

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

All is working and I must say that’s an amazing improvement. I spend a lot on new cables and other hardware the past month and what a step forward it was to ge…

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

It works really well. Bravo!

Greetings

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

Thanks for a great product.

Regards,
Neal

Music has become even more fun.

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

Thanks Jan

Dear Keetakawee,

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

Best
Stefan

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 …

Hi Keetakawee,

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

This time I am going to install Fidelizer to my Contr…

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

strong hug.

Hi,

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

Suruj

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

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

Windows X,

I finally got around to installing Fidelizer Pro 7.0 and now 7.1 on my 2CH System. After the first song, I knew that this was a nice enhancement to my sound system. I have a C.A.P.S. based Windows 10 PC running Jriver through a BADA Alpha …

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 …

Tx Man, Difference is night and day

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…

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) f…

Dear Keetakawee,

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

best for you
W. Zöllner

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 impr…

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

Thanks for the tips I think you are doing a great job, good luck. Very pleased with my upgrade to PRO. I try to convince as many people to try your free product all have really enjoyed the improvement, I shall keep promoting this on my FB Group High …

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…

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 v…

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…

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 rich…

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

Hi Windows X,

This is some brilliant stuff! Music seems to come from a darker background, with a more realistic tonality. Bass lines have improved significantly, each drum beat is tight and precise, overall bass is much more punchy and energetic. To …

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

Good morning Keetakawee

I cannot thank you enough for making this software, I downloaded your software to my computer this morning and started listening to my some of my reference recordings. I honestly sit here with a tear dripping down my cheek lis…

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

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.

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 nothin…

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

Sincerely,
Carlos Óptico

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

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

I have been using the Fidelizer for a while and i am very impressed. I’ve turned it on and off several times as a sanity check and am amazed with the sonic improvement every time I turn it back on. I have also played with the settings and bypassed th…

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 instrume…

Hi,

Today, I reinstall the windows server 2012 and set SATA in AHCI. Bingo. The esata storage can start every reboot. Now I disable all the services in AO except WMI and I choose Extremist in Fidelizer Pro and JPlay in single pc mode. Now the sound i…

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

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 …

Hello Keetakawee,

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

Best Regards
Jacek Grubski

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 analyti…

Hello Keetakawee,

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

Music is running Audirvana using Windows Kernel Streaming, directly to USB on our DAC in bitperfect mode, no upsampling, on …

Hi

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

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

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 abando…

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

Best Regards
Dinah

Hello,

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

Thank you!

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 ‘mu…

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

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…

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

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’…

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

???

Regards, Shane.

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

I’m going to share a little about my hardware to possibly give you an insight into
my …

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

Hi,

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

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

Less g…

I’m enjoying the software very much. Previously I had used Free Fidelizer in addition to running my PC with Win8 in safe mode and doing much of the service closures myself. I tried this same path with Fidelizer Pro but found that starting windows i…

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 sp…

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. 10/11…

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

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.

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!

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

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

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

Hi,

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

René

Hi Keetakawee,

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

Kindest,
Dennis.

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 syst…

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

Regards
Fred

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

The listening experience is phantastic, especially DSD r…

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 indi…

Hi Keetakawee, thought I’d drop a few words on my Fidelizer Pro experience, for what it’s worth. I just replaced a 2002 HTPC with a laptop for the internet and a Hollis Audio Labs MS-3 fanless mini-pc music server with Windows 10. I’m using JRiver fo…

Hi Keetakawee,

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

Kind Regards
Dirk

Hi Keetakawee,

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

Thanks again! I cannot imagine my runn…

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 …

Hello,

Now it works 🙂

Thanks for your excellent support and help.

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

Best regards

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

Thanks Keetakawee,

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

Thanks for all you work.

This helps me improve my source PC so much it will save me money from other potentially expensive downstream experimentation with different hardware, just to get the sound that I want 🙂 Dynamic range, instrument air, details and imaging have impro…

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 w…

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, jp…

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

Thanks,
Chris