Unfortunately there is still no certification for the NAD M33. You promote to use AirPlay, but this is also not working. I can select my NAD M33 as an AirPlay device, but I can’t start playing a song.
I have no problems to use my NAD M33 with AirPlay and other apps, Tidal for example. So its a ROON problem.
Same with my HomePod. Selectable but no playing possible. With other apps no problems to play with AirPlay.
So whats the ROON AirPlay problem?