My 1500 will randomly stop working on a single channel. Nothing being touched or adjusted and it'll work fine for a while then randomly one channel stops working. Normally to remedy the issue I can power it off completely and turn it back on but last night this didn't work. To troubleshoot I moved channel 5 (front left speakers on my 1100s) to channel 3 (center channel) and the 1100 started working properly. Not only did the 1100 start working but the center was unaffected to the move to channel 5. Having a hard time deciphering what exactly could be going on. Anyone had any similar issues with theirs?