Hi spinaltap],

The 210 connects to two DSP speakers. How would I connect the other four?

Audrivana and Roon handle stereo tracks but no mention of the audio when playing video from a file, YouTube or disc that has surround sound.

Meridian 101B/104/M1 MkII/D600(x4)/M60C & MCA,Linn Sondek/Ekos/Trokia,Uher CR160,Bose Videomate speakers,Sony RDR-HXD970/PC100/HDR HC7/EV-S9000E/VCC5000/WM-D6C/Nex 7,PC DVD-RW /Blueray-RW/Terratec DMX6FireUSB /Blackgold HD Freeview/ HD Freesat, Devialet Phantom Gold (x2)+Hub, B&W PV1