SpeakerLink or SPDIF (D1 or D2) input is setup per source (CD, DVD, RADIO, etc., etc.) in the speakers configuration.

Only MASTER speaker is adjusted as the SLAVE is still connect via SpeakerLink back to the MASTER.

861v6+ID40, HD621, 8000.2, 7200HC, 7200.2, SKYQ Silver, PS3, PDP-LX6090, QNAP TS870-Pro (8*6TB), Roon, iPadAir2.
[In Reserve] C15, MD600 (2*3TB), TwinStore RM (2*2TB)