I hate to ask a question that appears to already be answered, but I'm not sure I got how this ended other than the fjords; those lovely, imposing fjords.

I have a G68J (i.e. no speakerlink, no BNC), and am currently using the G68J's two comms for speaker master, and an HD621.

I'm strongly considering buying a C15, but when I try to add it in the configuration app, it removes the comms from the HD621, and attaches the comms to the C15, leaving the HD621 comms-less.

Doesn't this mean that the HD621 would have to be manually controlled, or is there a clever solution.

Thanks in advance for any advice.

Living room: 818v3, Audio Research D150, Maggie 1.6
A/V room: 861v8, DSP7200SE L/R/C, 4x DSP320 surrounds, ID41 + Roon, UHD722, Prime+PS