Hi, I can configure all of this via the 218 or via the speaker so assuming the 218 is the best option. Getting very frustrated with this now. I get the same issue either using Sonos via coax or the TV using optical so it’s not the source that is the issue.

I have checked the speakers are configured left and right. I would describe the audio as a cheap mono radio.

If it were an issue with a speaker I would have expected to only see the issue with one speaker and not both.

I have tried just about every combination of settings but not seeing any difference. It has all been working perfectly so very confused. Obviously I have changed so much now I am not sure what to do.

Speakers are set as RSRJ45 and LMRJ45
When I press Clear I see "Con" on the master speaker but nothing on the slave. The manual suggests I should see N.CON on the other speaker but I don't.

I have tried changing the phase but get no change.

I have not swapped out the 218 for a direct digital connection, not sure what else I can try.

Any suggestions would be very welcome.

DSP5200SL, 218, with Sonos. Rest of home Loxone multi room audio with Monitor Audio speakers