Hi,
Name: Denon PMA-2500NE
Receiver: USB XMOS
DAC: TI PCM1795 (DSD64/128/256 capable)
Async: Capable of Async Playback YES
Working with Volumio: Not fully, DAC is recognized as PMA-2500NE, PCM OK, DoP OK, but Native DSD is converted as PCM384Khz 
Tested Versions and Platforms: Sparky via USBridge - 2.348
Harware Mixer on Volumio: NO
HW Mixer string: N/A
Comments: PCM is working, DoP is working(Denon report DSD in the front screen), Native DSD is not working
Buying Link: At your hifi store…
Thanks for patching 