In Reply to: RE: Galvanic isolation?why are posted by fmak on September 9, 2014 at 04:13:52:
I've been running optical USB (1.0) for years. The receiving end was powered by a TeddyReg. I considered this a great solution. Unfortunately USB 1.0 wasn't sufficiant anymore.
iFi states 5db noise reduction with the iFi purifier!
You just need to read the specs.
They (those passive filters) get the noise that low that the bits are no longer that much affected. (That's what the marketing says). That doesn't mean though that the remaining noise -- whatever noise and other distortions or interferences we're talking about - won't creap into the DAC to affect other critical parts of it through the backdoor.
Obviously there are other effects with USB. Such as crosstalk between the lines. That's why you'll even find highpriced split USB cables to buy nowadays.
Or People cut the power line. Shorten the cable....
These problems are also gone with optical.
Cheers
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Follow Ups
- RE: Galvanic isolation?why are - soundchekk 05:15:46 09/09/14 (5)
- Who is talking about the iPurifier? - fmak 08:49:30 09/09/14 (2)
- RE: Who is talking about the iPurifier? - soundchekk 09:13:39 09/09/14 (1)
- Same technology inside. - fmak 10:03:30 09/09/14 (0)
- So, the answer to fmak's question is "No". - carcass93 08:05:45 09/09/14 (1)
- RE: So, the answer to fmak's question is "No". - fmak 08:52:44 09/09/14 (0)