I've got the RM6600 package and after moving, the center speaker is not working. I tested with new wire and nothing; I used the original wire and a satellite speaker on the receiver's centre channel and it worked. So basically its the centre speaker that's dead.
As for the speaker - there is absolutely no sound coming out of it at any level on the receiver. It seems like a broken circuit if that's possible (?).
Is there anything I can test using a multi-meter? Can I test resistance between the +/- contacts to see if the circuit is complete?
Another possibility is that the black terminal on the speaker is lose and wiggles a bit. Can I take the speaker apart myself to check the terminals? I took the front foam off and the speaker has 4 plastic screw-covers on the corners. Can I take them off using standard tools? Is this all a good idea?
Thanks for anyone's advice.