Richter Di
1000+ Head-Fier
Dear @FiiO , thanks for your answer.
Yes, the Creative Super XFi acts like a DAC plus DSP introducing HRTF for the headphones.
I connected the Fiio M9 directly USB C out to USB C in the Super XFi.
Is there a USB output mode in the Fiio Music app?
@FiiO Checked that also in the Fiio Music settings that USB output was on and tried DoP and D2P but none of it worked. The Super XFi USB device is recognized but no music comes out. Also the Super XFi is putting out a message about its typical message and as it has no own battery it pulls the power from the M9.
Again, the Audeze Mobius headphones with the included DAC does work super good.