.. YES! Very good synergy with the AH-D9200, also in comparison to many more expensive amps in my collection
I only got this severe hissing issue with DSD files (e.g. Foobar) on the CMA400i when using PC and Master Volume in the Questyle Audio Control Panel is not set to zero:
...but since you using DAP , this might be different reason.
In fact that turned out to be the solution. @Davy Wentzler from UAPP suggested to push the hardware volume in UAPP all the way up... So I set UAPP to Native DSD and shoved the sliders to maximum... And voilà.. It suddenly started working.. I still have to stay away from the M15 volume button, but that's only a minor issue. Bottom line is that it now works in all its DSD glory...

