Since neither of my Fiio DACs work, but my sort of 7.1 to 3.5mm DAC
does, I believe the issue is something to do with PCM or maybe the DSD
format. Having diagnosed the issue that far, and not seeing a setting or
developer option I can change though, ...
I dunno if this offers any clues, but while my CCWGTV doesn't push audio
to either my Fiio K5 or Q3, it does work with this 7.1 to 3.5mm emulator
dongle I got from Amazon, so IDK.