Firewire/USB noise reduction
Aug 2, 2010 at 2:28 PM Post #16 of 17
Okay okay okay - I give up - you win :)
 
The product is the best! - buy it! - but there might be delays as the entire chip industri is overburdened for the time - so next tape role is in late september and maybe later.
 
 
If you want my answer to your "bold" question - which I know you don't :)
The ADUM will not provide better sound on a less noisy PSU.
 
 
If you like it that way - keep it that way - No mather if it is right or wrong. (Maybe you don't even know why) - just know that this will not apply to the situation of all other users.
 
 
Here is some info to short USB cables: (This is with the USB isolation)
The shortes cable has less resistence, hence more power available - we sell the USB plug also (I think you bought it - right?)
If a short USB cable/Quality USB cable makes the sound "better" - it can be the higher power or that the SPDIF is closer to the capacitors in the USB2ISO, that improves the SPDIF module.
 
If any of these two scenarios is true - the SPDIF module is poorly designed: - The SPDIF, you have, has external supply - hence lot of power available. Ensuring stable power in an audio module is a must for any engineer.
 
 
PS: If you want to learn more about USB - I can highly recommend a short version at http://www.usbmadesimple.co.uk/ums_3.htm
 
 
Still looking forward to hear more about the secret features of the ADUM4160  
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Best Regards,
 
Soren
Electronics-shop.dk
 
Aug 2, 2010 at 2:49 PM Post #17 of 17
yeah, I told you in PM this would be a sterile debate...you most likely haven't done any real world experiment and seem to be a hardcore skeptic, so let's just say that ADuM4160 only provides galvanic isolation(even though the datasheet says otherwise, like other ppl's field experiences tend to prove), this is fine by me
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Soon or later another manufacturer will come up w/ an ADuM4160 dongle running off a cleaner PSU and I will A/B them...simple as that
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for now my 2 secret weapons are your ADuM4160 dongle and the WM8804 S/PDIF reclocker in the Bravo
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WM8804 is also used in top range DAC's: http://www.nekoaudio.com/index.php
 
The amount of technology you can buy these days is pretty darn amazing!
 

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