I'm trying to use this to convert USB from a Mac to 24/192 on coax or optical. All I get is 16/44.1 output. If I just use the USB straight from the Mac to DAC I get 24/96, so Mac supports higher resolution. I tried using their drivers on a PC and can get 24/48. It's the same on coax and optical. Tried calling China, but no answer. Multiple Emails unanswered.I guess it's time to return it.
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