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...
    • JohnJCallanan
    • Thread
    • e30 e30 noisy galvanic isolation noisy noisy dac topping topping e30 topping galvanic topping noisy usb
    • Replies: 5
    • Forum: Member Area
  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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