Bought it on spec and half expecting to return it but it’s a keeper. It now sits between an Auralic G1 streamer and Chord M-Scaler – Chord Hugo TT2. The Auralic has high quality dual master usb clock circuitry and the Chord have galvanic isolation + very sophisticated clocking electronics; however, this little gizmo cleans up digital excesses just a little further. The sonic outcome is quite subtle but also immediately noticeable; occasional vocal hardness has been ameliorated, bass is better behaved. The overall result is that of a slightly more organic and “analog” presentation; however, don’t expect a significant transformation in overall sound quality but considering the modest price I consider it to be a bargain and a very worthwhile addition to my hifi.

I Have a collection of Headphones that I love and sound great by themselves and I added the ifi audio zen dac with some audiophile cable’s it sounds amazing and then I decided to add to my already good sound ifi audio iPurifier3. WOW!!!

“Sound-wise, the iFi Purifier is definitely NOT snake oil. What I noticed – and it’s not my imagination – is that some of the higher frequency “grundge” was no longer there. In addition, something happened with the bass that I was not prepared for, and that was the bottom end (or what your speakers can handle) was a bit more defined and tight – now that was a stunner for lack of a better description.

Some of the orchestral pieces that I enjoyed listening to (and use as my reference standard for evaluation purposes) now were presented in an even cleaner fashion – with no harsh overtones or harmonics. It was (especially with some orchestra pieces) as if a small yet very distinguishable veil was lifted between you and the orchestra.

All of a sudden I felt more connected with the musical environment. High’s that previously had lots of bite (raspy sounding for example), now were substantially smoothed out, at the same time providing more “air” around the instrumentation. And this leads to a longer listening time without listening fatigue.”

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To be honest, despite the glowing reviews of the iFi iPurifier3 USB Filter, I wasn’t expecting too much of an improvement especially compared to the Audioquest Jitterbug but I was intrigued to hear the possible impact of Noise Filtering technology in combination with it reclock, regenerate, and rebalance technology.

Wow, at $129, it is an amazing value and it is sized for portability – although it is still too heavy to be considered as applicable to “on the go” usage.
Currently using it with a Lenovo Thinkpad 430Ts connected to a Musiland Monitor 01 US DAC/Headphone AMP via a PANGEA Audio Premier USB Cable (0.5meter).

Impact was immediately evident. On the most basic level it manifested as a huge increase in volume. I literally had to reduce the volume by over 30% on the master volume and from -4dB to -14dB in the Musiland controller software. Musical and dialogue was much clearer, cleaner, and sharper.

Sound effects such as reverb and echo were clearly defined rather than a fuzzy fusion as were individual instruments within their own space. Once I install it in my main desktop system, then I may write an update for any additional observations. Although this Filter supports USB 3.0, all tests were done on USB 2.0 equipment.

I was hoping it wouldn’t work so I could save myself the money, but unfortunately or should I say fortunately it improved the quality of the audio though my speakers more than I expected.

I tried tricking my girlfriend in a blind test to see if she could figure out when the device was connected and when it wasn’t. She consistently liked the tracks where the device was plugged in.