iFi iPurifier3 USB Audio Purifier and Data Signal Filter (USB Male Type B, White)

Great product… really lowered background noise levels on my USB cable.

I bought this, attached it to my USB cable and plugged it in to my Chord DAC. It is amazing. There is no longer any bloat to the sound from the speakers. Before using this I had to be careful turning the volume up as I knew which notes and sounds would bloat and stand out badly. The sound is now ultra clear and "stays back" at the speakers". No forced sound at all. I never noticed any background noise before but I now know what silence means; I can hear way more going on in the music, details coming through from CD's I have listened to for 30 years. When I listen to music now, it really does sound like I am in the studio with the artists. I can hear the reverb tails on vocals that were hidden before. Singers like Barbra Streisand and Celine Dion no longer have that screechy edge. The sound is smooth and velvety and finding the sweet spot is so easy. The depth of the soundstage is brilliant, I can hear horns and drums that are way behind the violins. The whole sound is lighter and "free". I can hear longer fade-outs on songs that I didn't know existed before. The bass is deeper and thicker in a beautiful way and I find myself tapping my foot all the time where I never used to. I have to check that I am listening in stereo as the soundstage almost envelops me on some songs. Fantastic. I cannot recommend this enough, even on expensive systems.

I can't say it'll do the trick for every music listener, now will it make a sik purse out of a sow's ear, but in my own case the iPurifier3 turned a dingy-sounding USB connection between an old thinkpad and a Denafrips Ares II DAC into something immaculate. The Ares seems to be only as good as the quality of its feed and now it now sounds FANTASTIC! UPDATE: It sounds even better connected to the output from an Ipad Pro. With a linear power supply connected via a Lightning to USB 3 Camera Adapter, I've quickly lost any curiosity I had for more expensive solutions. I can't imagine my system any better! And now my budget might even be cleared for a Roon membership!

La première constatation après connexion du iFi iPurifier 3 USB (Type 'B') sur mon dac Pioneer U-05, c'est des basses un peu plus percutante et ensuite un aperçu des aigus très légèrement plus distinctif et détaillé dans la stéréo. Après quelques minutes d'écoute, je m'aperçois que pour un milieu de journée en semaine la musique est moins dur, une image sonore moins agressive et moins fatiguante à l'écoute. Un moment que j'appréciais avant particulièrement après 19h00 +/- quand le secteur était moins perturbé, ainsi que les bruit numérique qui provenait de mes ports usb du pc et qui incommodaient la qualité d'écoute ! Maintenant peu importe, que ce soit la semaine ou le week-end la qualité du son est bien moins fatiguant et plus calme ! C'est exactement ce dont j'avais besoin. Je conseille vivement un très bon câble USB qui fera ainsi toute la différence.

update 4/5/2020 I just wanted to give a update since i am so pleased with this product and company. (Yes my initial unit went bad, but those issue were quickly resolved by iFi, any product no matter how great can have an occasional reject) Anyways for those who have a gaming laptop know thier usb audio can be a little noisy. For myself it's a Omen by HP. And for those who have or had a Parasound P5 preamp know the DAC can eem a little basic as far as audio quality. However when the ipurifier3 is in the loop it's like having a completely different high end dac. And running horn speakers with 99db efficiency, it's pue joy having absolutely zero hiss or background noise. I can't speak for all iFi products, however the ipurifier3 is a winner. Update 10/15/19 It is extreamely rare for me to give a product update after a year, but this product absolutely deserves it. I can say this product is the best upgrade i have ever had for my system. What this has done for my audio coming from my computer is just remarkable. I know listen to almost exclusively audio from my computer (mainly spotify). What this does to make sure your audio is clean, reclocked and balanced is nothing short of amazing. Nothing is taken from the audio signal, it just keeps it well sort of perfect. Without this, i found the audio through usb was not so enjoyable. And i run a Parasound P5 pre and Anthem audio amp, with custom two ways and a 18'' sub. I can only say that almost everyone who has heard my system, has now bought the ipurifier 3. This company deserves 10 stars, not only for their product, but also their customer support. 9/21/18- I am updating my review because the company (Tiffany) contacted me and is sending out a replacement. As long as the product sounds like the first unit and holds up, this is an awesome product and company. 9/16/18 Took the chance of buying another one because I really liked the first one while it worked. I'm starting to wonder if there is a quality control issue or just a bad batch. This one has the occasion cracking or popping noise when switch the music or shut down a app. The old one never did that, and my DAC does not do it without this hooked up. This new one doesn't seem to have the solid tight punchy bass and doesn't tame those annoying sharp shrieking type highs that can get over exaggerated. Cant really tell a difference with this in use. My first one worked as advertised and did and sounded just I expected and liked very much, until that 3rd or 4th day when it went out. Just sucked because these really do improve the audio quality when working right. I may contact Tiffany from iFi and let her send me a replacement straight from the company instead of amazon. Hopefully theres wont have any issues. If I get a good working unit my review will go back up to 5 stars Update-9/13/18 after writing a good review the device quit working today. Not sure if I will try a replacement or not. Update- No need to actually wait two weeks for this update. AS LONG AS THIS HOLDS UP, IM KEEPING IT! Well I must admit I am shocked how much I like this device, I honestly thought my first impressions may have been a placebo effect, but happy to report it was not. With my equipment I just didn't think I would get any advantage from this. So I had my son come over to help me blind test this and try to fool me. But it was easy to pick a winner, the ipurifier3 has to stay in my system. By the way, my son was shocked to. He didn't think my system could get much better, anyhow here we go. With this device, not only did the sound stage become bigger, wider, and even taller. Bass is precise and now I don't have those occasional unnatural highs I used to get on some music. Best part is I am not using any bass or treble enhancements, just a straight clean pure input to output. My son and I were both shocked, we had to look several times just to make sure there was nothing else bass or treble added. I cant believe. I finally have the sound back that I used to have with a prior system years and years ago. And this is probably better. The music is clean and precise, no clutter, no tangled business. Every instrument is completely identified and proper placement. I just cant stop listening, im not getting anything else done or accomplished. LOL My 27yr old son even sat for a few hours listening to classical, percussion, and acoustic music. He said he never thought he could appreciate that kind of music. But who knows I may have opened his mind up to some real music. Maybe he will start to see that rap isn't really music. But we did test some rock, rap and country to see how it faired. He liked it, I liked it all except for the rap, it just aint my cup of tea. I must tell you I really hate giving out this kind of free advertisement, but this product (as long as it doesn't break down) actually deserves the endorsement. Don't listen to the one review telling you it's for lower end systems, that's utter nonsense. Maybe he doesn't understand the technology behind this device. I didn't think my decent 15k system would benefit from this and I can say with no qualms about it, I was wrong. ______________________________________________________________________________________________________________ I have had this now running about 6 hrs, so i'm still going through the initial test phases. I was reluctant to initialy try this as I had heard it is basically only beneficial to lower end systems. To be honest my system sounded great already, but if there is a way to get even a small improvement I will usually give it a try. My sound system may not be the most expensive system out there, but for a 2.1 stereo system I have about 15k in it. And I like it better than a few of my buddies who have double that in theirs. It is so hard, time consuming and important to pick the right components. Lots of research and even more listening and auditioning equipment. Anyways onto initial observations. I am still up in the air as far as rock or country music goes. However before when listening to Jazz, classical or any piano bar type music. To get the right sound I had to add or adjust a little bass and treble etc. Now when I listen to aforementioned music. I can have it as direct untouched no bass or treble adjustments or enhancements. And I must say, this seems to be doing a good job of accurately reproducing the music as intended. Horns, trumpets, piano, snare etc, all sound more natural. And I know this could be a placebo effect, wanting or hoping it sounds better. So this is why I will wait a week or two before making my final decision as to keep or return the product. I anticipate at least a hundred or so hours of comparing and listen test's to give an honest and accurate review. So check back in a couple of weeks for the update.

DDコンバーターのSinGxerのSU-２のＵＳＢ（２．０）Ｂ端子にIFI Audioの音源・電源分離型の（型番は忘れた）ノイズリダクション（最近なぜか売っていないタイプ）を経て、USB A（2.0）×２からUSB B(2.0)で利用しているが、ケーブルもIFI Audio旧型の黒いコード（今はだいぶ安くなって、３万円ちょっとで買えるようだが、私の記憶では、私が買った当時は、４万５千円前後したように思う）でGUSTARDのA22 ＤＡコンバーターにI2S接続で音出し。見違えるように鮮やかでニュアンス豊かな音質の変化が聴き取れた。もし、ケーブルを異常に高価（0.７ｍで６万円以上もする）だが、IFI AUDIO の新型（オレンジ色の平型）のUSB Aタイプ（3.0×２）からUSB Bタイプ（３．０）に変えれば、もっと素晴らしい音になるかも？