It depends on what device you want to control volume. In any event, they all need to be connected by comms. The 562 needs to feed SPDIF to one speaker and then that speaker has to be connected to the other. The manual will help you immensely

1: 808.6 Anniversary, 504, Sony ES Bluray player, Apple TV, Trinnov Altitude 32, 7200SEU l/r/c, plus for immersive audio
2: Theta Compli Blu, Apple TV, HD621, G61RSL, B&W Sig 8NT l/r/c, & Runco Plasma
3: 861v8, 504, Apple TV for streaming 3100 l/r/c
roon all around