I wasn't sure of the right place to ask this ... sorry. Just looking for help in case anyone has any knowledge of this. For the first time, my Sony receiver/amplifier is not agreeing with my rear surround speakers. Sometimes, the rear speakers work perfectly. At other random times, no sound at all comes from the rear speakers. It is all or nothing ... there is no in between. And there are no problems anywhere else. I have checked that the speaker wires are secure at the receiver and at both speakers. Other than that, does anybody have any suggestions for what I could try? Thank you!