My Home Theatre back channel in the 7.1 surround system is producing a strange low distortion like crackle. My AVR amp is Denon 3311. Checked the wire (its working fine) the Back channel speaker is fine as well. Switched the wire in the amp and found the same static distortion on the Surround speaker. The issue seems to be in the Amp. What could it be? how to fix this ?
I may need to take this to the Electronics repair shop but want to try some other checks before surrendering. Any ideas?
