Watch it here…

Got a new Rotel A-12 integrated amplifier last month and am very happy with it. The only thing I noticed (after all this burn in time) that I didn’t like is that some items with complex tonality, like Karen Carpenter’s voice… pure high tone with that special depth that made her voice so memorable was missing the latter. I was thinking strongly about buying an external DAC, but after reading about this item I thought I try it. GLAD I DID.

Not only do I now her Karen’s voice in ALL it’s glory, I hear ALL the richness in other items like pianos, harmonicas, voices, violins, etc. Basically any item where sound is made by vibrations controlled by air flow passing over chords/reeds of some sort (voices, harmonicas, reed instruments) or manually struck (piano, violins, etc). Note I’m a subtle but NOTICABLE difference. I also agree that it cleans up the background of noise and distortion so it makes it easier to hear items in the background that used to be missed.

Do yourself a favor and try it. You can always return it. But my guess is you’ll keep it.

YOU CAN THANK ME LATER…. Glen

“It absolutely does what it promises…it actually made my listening tests more enjoyable”

The damn thing works. It works both on SPDIF/coax input using my CD player as a transport into my supposedly magical jitter-irrelevant ASRC enhanced wonder DAC, and on the Toslink output from the TV fed by USB inputs from a Roku, a blu ray player, and a video game console into that same DAC. But it doesn’t do both at the same time.

If you want to use both SPDIF and Toslink sources at the same time without flopping cables around, you’ll need two of these little turds. But it does work. The level and kind of improvement is similar to a power supply upgrade to a preamp or turntable.

I think of myself as a man of science. I try not to believe in anything and to rely on proofs and experiments as much as I can.

If I can’t measure something, I try to understand how it works in theory and therefore how it should behave, and if things I find out are supported by theory or not. Let me say right at the start that I don’t believe in cables making a difference, but that’s because I think there’s nothing to be believed – something either works or it does not, there’s no need to believe.

We’re talking about cables, not some god or the immortal soul. We have this saying in Italy which goes roughly like “I’m like Saint Thomas, I don’t believe in things unless they’re right in front of me” – that’s my approach. So when I was asked if I wanted to try the iFi SPDIF iPurifier, I was interested in finding out whether it worked or not.

Even though I read many positive reviews, I was skeptical. I installed the Ipurifier between my DAC and a multiple Toslink selector and I was pleasantly surprised by a noticeable upgrade to the sound quality. It is most apparent with the sound from my older cd mega changer. Instruments like cymbals and bells are more focused.

Vocals are more natural as well. Also a bit more definition in the lows. One negative is that when the device is not receiving a signal (for example if my cd mega changer hasn’t been turned on) it emits a static sound through my audio system. Easy enough to solve by just remembering to turn on the device going to the Ipurifier before turning on my audio system. There is absolutely no static once the device going to the Ipurifier has been turned on; just clearer sound.

The above product was purchased because of the recommendations by some in the music industry whose opinion I respect. I was not disappointed. The purifier definitely makes a positive difference when placed at the end of a SPDIF cable before a DAC.

In my opinion there is a bigger cleaner sound, voices and background music becomes clearer. One can now enjoy listening to music for hours.

If you’re thinking about dac upgrade, stop there and try this . Initially impressions dam good. I will update later

Product is easy to use and seems to be purifying my coax signal as exactly as described.

Nice product with multiple connection options. Well packaged. I’m using this with my chromecast audio for streaming. I first saw this while checking out Darko audio reviews.

I had a persistent ground loop issue on a high end surround sound system.
I was skeptical this would fix it but it did so instantly with no further issues.

I know that there are a couple of scientific reviews which say that this filter injects noise into the circuit. To that I say BAH!!

I wanted whole house sound when streaming TIDAL, so I ordered several Chromecast Audio dongles a few weeks before Google decided to discontinue them.

Then I read about upgrading Chromecast Audio with Ethernet input (vs. WiFi), a linear power supply (also from iFi) and this anti-jitter filter. POW!! The difference in HiFi sound from TIDAL was detected by my spouse who generally does not notice subtle audio differences. Blur, pre-ring, and noise were limited to the extent that on Diana Krall’s “A Case Of You” (from Live in Paris Album) at 16, 32, and 41 seconds, for the first time I could hear background noise. Raised the volume until I could hear it was people coughing in the audience!! Listened to this cut many times and NEVER HEARD background coughing before.

I wanted a good stepping stone solution to my upgrade path. I have a Chromecast Audio ((which increased my enthusiasm for listening to music on streaming services (Tidal, Spotify)) and wanted a step up in quality before going on to a superior solution; such as a Raspberry Pi with ALLO DigiOne Signature.

This little device transforms the quality of the CCA, creating a sound with a much fuller, taller, broader and meatier structure, which will possibly benefit from pulling the speakers away from the wall a little more for balance.

As a bonus I have a decent (included) power supply for use with the Allo/RPI combination later on!!!
I’m very pleased with the results.

I used this spdif purifier to clean up jitter coming out of my Sonos Connect, known to be a jitter monster.

The ifi unit is no bigger than your thumb, but does a great job of cleaning up the digital audio signal. Highly recommended.

I bought this after reading some reviews/blogs. The bottom line was maybe it will work some maybe not. For me in my system nothing could be further from the truth. Amazing upgrade on sound quality all around. Of course sound stage has opened up but most importantly the natural timber of vocals and instruments is now pure and alive. Digital glare is all but gone.

I couldn’t be happier with this little gadget. My system consists of a Yamaha SACD player that I use as a transport into an upgraded audio-gd R2R DAC. Through the S/PDIF digital connection, output is all PCM. One of the best and cost-effective tweaks I’ve done to my system. Five stars!

I have a good – but not recent – hi-fi system. It just needed that something which, until this great accessory arrived – the
iFi iPurifier SPDIF High End Digital Filter

This device goes between a SPDIF RCA digital output from a CD/DVD player and a stand-alone DAC or receiver’s digital input. I don’t know about multi-channel audio. I use this “reclocker” between my Jay’s Audio Transport and DENAFRIPS Terminator DAC. It is an improvement. Mandatory if high-fidelity audio is important to you. I have two.

This has made a very nice difference,the noise floor has dropped even more then before.Ive got about 60 hrs on it so far and it sounds great.This little device sounded good right out of the box.After the first listen,I put in the XLO Test & Burn cd in and let it play in repeat on the Cambridge CXC transport for 60hrs and gave another listen and its even better. More realistic tone/timbre, resolving micro details, imaging is more palpable. Just more musical…best bang for the buck in years and I have been into HiFi since my Army days in Germany1975.

Equipment I’m using the IFI with a Cambridge CXC cd transport,IFI spdif ,Schitt Gungnir Multibit dac,60watt Tube amp into Klipsch Hersey III.

Do your self a favor and pick up one of these little gems up and sit back and enjoy your new sound.

Ive seen were others have stated that it takes about 3 weeks to burn in,so if that’s the case.Its only going to get better.

Enjoy !!

Used with Sonos Connect into my Schiit Yggdrasil DAC (coax/coax). Sonos sounded real good to begin with and was almost as good as my Rotel CDP used as a transport, so the DAC is doing a good job with its internal reclocker dealing with the jittery Sonos. I dig the Sonos ecosystem around the house and would like to keep it in the main system, so I was hoping for at least a little improvement with a reclocker; however, this iFi SPDIF iPurifier is a fanstastic sound upgrade for me. Had considered a couple other costlier alternatives, but not thrilled with upsampling and figured I could use the iFi in my A/V system if it didn’t work out in the main system. As many reviews suggest, the detail, depth, and stage improvements are impressive, and the iFi provides good combinations of input/output, if needed.

I must say that I am primarily a vinyl guy, and use digital at home for music unavailable/unwarranted on vinyl (and Sonos frequently feeds my ADD), but this system addition will have me listening to digital quite a bit more at home. Obviously the iFI SPDIF iPurifier is likely to have different or less impactful results in other systems (e.g., better streamers, better DAC reclockers), but this has delivered an astounding improvement to my setup regardless of its small price.

The difference in SQ was immediate and substantial: much greater clarity, more solid placement and imaging of instruments, and movement of the stage image forward, closer to the speakers. Wasn’t expecting such a difference, if any at all.

I am using the SPDIF iPurifier with an Auralic Aries Mini and a Rotel integrated amplifier that has a built in DAC. I tried several USB cables along with an inexpensive Audioquest COAX cable and I determined that I preferred the sound of my setup with the COAX cable. I then tried the SPDIF iPurifier to see if it would improve the sound. The results were very positive.

The SPDIF iPurifier made subtle but significant changes in several ways. My system sounds better with quiet, acoustic music. I guess that means that the noise floor was improved. Music with grunt, such a jazz sax sounds, has more detail. The overall sound is more smooth. Everything just sounds better.

The end result is that I improved the sound of my system for far less than the cost of a “quality” USB. The iPurifier is well worth the money.

I’ve never been particularly sensitive to jitter in digital audio. I think there so many other things that affect the sound more.

Pros: Cost effective coaxial and optical digital source cleaner.

The goal of the SPDIF iPurifier is to clean up jitter and electrical noise in digital input so that the DAC will more accurately convert it to the music output that you listen to….It re-clocks the digital audio signal, galvanically isolates the DAP from the DAC and uses Femto clock to provide better timing of the bitstream, together with an ultra clean power source…The unit is also a lot cheaper than the W4S Remedy Reclocker…It is beautifully put together and looks and feels to be a quality designed and built product…All in all it comes nicely packaged and definitely gives the impression of being a quality product…Does it make a difference? The answer is yes and in a good way…there was a noticeable improvement. Everything was brought into a sharper focus, the bass became deeper, the cymbals crispier and there was a general greater level of silk smoothness to the music. It had better shape and definition and a bigger soundstage which in turn meant better separation…Mariusz Duda’s whispered intro literally seemed to jump out into the room at me and all the other instruments were more clearly defined….At £145, it’s the most competitive coaxial or optical ‘data cleaner’ in the market….the SPDIF iPurifier noticeably delivers. For me it’s a keeper.