Hi Michelangelo,
I could not get my D50 to work on Volumio/Usbridge, no sound even though Volumio recognised the D50.
Did not work on version 2.411 nor 2.459 currently. D50 worked on Volumio/minipc.
Other usb dac [Stoner ud 120) worked on Volumio/Usbridge,
link to ssh log : logs.volumio.org/volumio/jYipFPO.html
Appreciate if you can have a look. Thanks