That may be a clue to your shutdown problem. Disconnect that speaker and see if the unit still shuts down. If it does not, then there is a problem with this speaker,or the wiring going to this speaker. If the unit still shuts down, disconnect each speaker at a time to see where the problem is. If none of the speakers seem to cause the shutdown problem, there is na major fauly in the amp circuit, so the amp will need serviceing or replacement. Good Luck
Follow the steps below to troubleshoot if the word PROTECT or PROTECTOR is flashing on the A/V receivers display.
Usually answered in minutes!