Question for you gentlemen:
I decided to try out the Optical connection between my NFB 12.1 and iMac. In USB mode, I could change the volume on my iMac, but with Optical that's not the case anymore.
Is my iMac's internal DAC still being bypassed in Optical mode like it was in USB?
The two connections definitely sound a bit different, and I can turn the volume up much higher in USB mode for some reason.