I think the Master speaker will be sending comms out “Master speaker comms” as the slave speaker is responding… problem is the HD621 is not responding to the change of source commands.

Typically these would come via a C5 or BNC cable attached to a processor (which in turn is connected to the Master speaker.

But I’d don’t know how to replicate this when there is no processor (multi or 2 channel) in the system.

I have all the Meridian equipment and Mconfig to experiment with but unfortunately I can’t do this till after Xmas. Thus at present I can only speculate based on my prior experience in setting up Meridian systems.

I hope someone that’s already been down this route can help.

Regards,
Carl

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)