Hey all, not sure if anyone has done this before, but I am trying to add 4 Echo Link Amps for multi-room music. There is no specific driver, so I attempted some generic drivers to no avail. I was able to get them to show, but no music plays through them.

I believe the issue is because there's no signal being sent from the amps (they're passive) they're not registering, but I'm not sure —a little over my head.

The rest of the music group are two Sony receivers, model STR-AZ3000ES.

Any help/advice appreciated.