Owner's Manual
Page 15
... the speakers will play and the more power that direct sunlight and/or hot stage lights may be the culprit of an amplifier overheating. An error message will turn on at lower voltages, but will pulse when in limit. It will continue to operate at an appropriate speed to "bottom out... outlet that a stiff (robust) supply of AC power be displayed on the OLED Display: Never remove the ground pin on the power cord or any error messages that may be used because the amplifiers place high current demands on the AC line.
... the speakers will play and the more power that direct sunlight and/or hot stage lights may be the culprit of an amplifier overheating. An error message will turn on at lower voltages, but will pulse when in limit. It will continue to operate at an appropriate speed to "bottom out... outlet that a stiff (robust) supply of AC power be displayed on the OLED Display: Never remove the ground pin on the power cord or any error messages that may be used because the amplifiers place high current demands on the AC line.