Reply To: USB to USB-B or Line Out to Line In for playback from PC to Qu-24

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2015/12/04 at 6:18 pm #52509
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If you have USB->Box->Audio then the Box does contain a USB-to-Audio-DAC (=”USB Soundcard”).
…and even it is external this does not break your ground loop, since neither (bus powered) USB nor audio is normally ground-lifted.