Well, but the air interface is same. Fancier after that but limited by what goes over the air unless it has WiFi and runs Roon/RAAT over WiFi?
But then you need to use Roon.
Or?

Main: Marantz Cinema 50, Meridian 271, DSP7200.2, DSP5200HC, DSP5000 rears, Meridian 210.
PC/Headphones: Mytek Liberty II, Sansui CA-F1, Sansui B-2301, Sennheiser HD800, Kef R3