galvanic isolation

  1. J

    Help eliminating USB noise from PC to Topping E30

    Hello all, I constantly hear high pitched buzzing and crackling through my headphones when using USB to connect PC to E30 to Schiit Asgard 3. I used to fix this by using optical, but my new motherboard does not have any sort of optical or coax out, only USB. This brings me back to the original...
  2. amirm

    Computer Activity Can Impact DAC Performance

    My son bought a Schiit BiFrost $400 DAC that claimed to have async USB support but immediately found out that he got PC noise through it just like his other solutions. So I instrumented it and this is what I found. Feeding it a single tone over S/PDIF: I wouldn't expect this kind of jitter...
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