Systems shuts off if sound gets too loud.
Yes, i had this same problem. If it was too loud, at level 37+, any loud boom would shut down the subwoofer, subsequently shutting down the speakers. As such, I figured it might have been the 8 pin dim cable, but that wasn't it. What solved the problem was lowerin the BASS level. Not the level on the subwoofer, but the actual BASS level. I had it at +10 (the max) and it was too much for the system to handle. I don't think I ever had it like that so I'm assuming someone, maybe my daughters, moved the settings. But anyway, moving the bass level back down to either 0 or +3 at most maintains the "boom" effect of the subwoofer minus the shutting off of the system.