so yesterday i was able to start my RPi3 with Volumio 2 (many thanks to AlphaPapa) and Volumio also detected my Digi+, but i got a lot of white noise at the output.
After some search i found several reports that this issue comes from the old kernel which the Volumio 2 RC1 was compiled with. Now i am wondering if there is also an other version with an different kernel or if i can compile it on my own? (or update the kernel?)
Otherwise my Pi3 and Digi+ is useless at the moment as Volumio 1.55 isn’t working on the new model.