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  1. #1
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    iFi SPDIF iPurifier (Wow)

    Hi

    I received my SPDIF iPurifier three days ago an placed it between my Bryston BDP2 (with the latest IAD board) and my MSB Analogue DAC.

    I only purchased it on a whim because my SPDIF sound quality has always been slightly better than my USB sound quality. By the way, in order to have my USB sound quality to nearly equal SPDIF I needed 1) the quad speed MSB USB module 2) iBooster VBus isolator2 3) Wyred 4 Sound USB Reclocker powered by a iBooster LPS and 4) a Curious cable link/LightSpeed Harmonic cable (so lots of USB tweeks).

    My SPDIF chain has just been a Cardas BNC to RCA plug adapter and a very well made RCA - RCA plug SPDIF cable (locally produced in Calgary Alberta, by Moray James), which compared well with cables costing thousands of dollars made by the "big boys".

    I didn't expect much from the iPurifier because I thought my SPDIF signal was pretty good to begin with, but after plugging in the SPDIF iPurifier I was shocked by what I heard. The sound was glorious. The soundstage expanded, the music became far more 3 dimensional. Bass improved... (you get the idea). The improvement was far far better than anything I heard by using any USB decrapifier, and I've tried many (the ones I mentioned above are just what I finally settled on, although I never tried any iFi USB products).

    But I'm an audiophile and so anal (by definition?). I would like to ask if you believe the iPower 5 volt SMPS which comes with the iPurifier could be improved upon by a good quality (in the $500.00 range) LPS?

    I'm very careful about power and have separate circuits for (1) hardware with SMPS (Macbook, hard drive, Apple Airport Extreme, and iPower), (2) power amps and (3) all other source components. Each of these has its own power conditioner. If I used an LPS for the SPDIF iPurifier I would also move it to circuit (3).

    I would be interested in hearing opinions about this.

    Thanks
    Barry in Calgary

  2. #2
    Senior Member Melvin's Avatar
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    Thanks for sharing Barry. This is on my radar so I've been hoping to read some real world impressions. I'm a bit surprised it made such a difference considering your very fine gear! Cheers.

  3. #3
    save your 500 dollars. my local dealer tried an lps and it make 5% difference. So for 5% to go from free to 500 is not worth it in my book. ifi dont make much noise here but their gear usually outperformance others. i would say the Amr name behind it puts them above others. my Retro is the all time bargain of the century. It really is and the wife and kids love it. Get a demo from your dealer or somewhere. good luck bud.

  4. #4
    Hi Barry in Calgary, I'm in Saskatoon and wondered where you received your S/PDIF iPurifier from. I'm having a hard time finding a Canadian distributor.

    Thanks,

    Cameron in Saskatoon

  5. #5
    Senior Member YashN's Avatar
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    Quote Originally Posted by Autiomatic View Post
    Hi Barry in Calgary, I'm in Saskatoon and wondered where you received your S/PDIF iPurifier from. I'm having a hard time finding a Canadian distributor.
    Isn't there one in TO, details on the website?
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  6. #6
    Freshman Member
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    Quote Originally Posted by Autiomatic View Post
    Hi Barry in Calgary, I'm in Saskatoon and wondered where you received your S/PDIF iPurifier from. I'm having a hard time finding a Canadian distributor.

    Thanks,

    Cameron in Saskatoon
    PM Sent

  7. #7
    Quote Originally Posted by Barry in Calgary View Post
    PM Sent
    Hi Barry, I am in Calgary and would love to know how you purchased it as well. The dealer they list for Canada is unresponsive. Thanks!

  8. #8
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    Quote Originally Posted by Barry in Calgary View Post
    But I'm an audiophile and so anal (by definition?). I would like to ask if you believe the iPower 5 volt SMPS which comes with the iPurifier could be improved upon by a good quality (in the $500.00 range) LPS?
    I haven't tried this combination myself yet, but note that this iFi device's voltage and current requirements are within spec for the remarkable Uptone LPS-1, whose crazy-clean power I have heard improve several digital audio devices I've tried it with (improving performance beyond what I'd been getting with an already excellent conventional linear power supply). And it's $400 instead of $500!

  9. #9
    Sophomore Member
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    'Nuff said!


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  10. #10
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    Quote Originally Posted by jbm0 View Post
    I haven't tried this combination myself yet, but note that this iFi device's voltage and current requirements are within spec for the remarkable Uptone LPS-1, whose crazy-clean power I have heard improve several digital audio devices I've tried it with (improving performance beyond what I'd been getting with an already excellent conventional linear power supply). And it's $400 instead of $500!
    I have since gotten a chance to try to use LPS-1s to power the now three SPDIF Purifiers I'm using in a couple of systems to clean up messy digital audio feeds coming from things like TiVos and a "smart" TV, and yes, the result is good enough that I've gotten addicted to it and the two LPS-1s so deployed are staying there.

    Note also that a single LPS-1 can indeed provide enough current to power two SPDIF iPurifiers via a Y-cable like this. And if those iPurifiers are configured, say, with one using both optical in and out, and the other using optical in and either optical or coax out... sufficient ground isolation is maintained that you don't need to worry about noise traveling via DC ground loops.