Did anyone else had trouble using the RCA output, on a Marantz 7702mkII.
I use an Outlaw power amp, model 7700 using the XLR connection, Also use XLR for the two subs.
Trying to get Atmos going, but unfortunately, the AVP has a buzzing noise for the rear ceiling speaker, using RCA connection due the extra amp does not accept XLR (outlaw Audio model 5000).
I have eliminated the RCA cord, speaker and wiring for them and the new amp, by doing lots of trouble shouting.
When using the RCA connection on my Left, Right and the two surrounds, there was also a buzzing noise on all of them, the only RCA output connection from the AVP that is silent, is Front Height.
The 7702mkII went for repair, once back the problem is still there, Marantz Customer Service told me to send it back for repair.
I told them to put a note in my file since it take a month turn around, and was going to try this step first;
I am going to try to use the XLR output by using a Female XLR to RCA.
Who knows, it might fix the problem, since I suspect the RCA output might have a bad circuit board, then again, I could be wrong.