... short circuit, high temp and overload. Indications for power, signal, peak and protection. Features:4 separate amplifier ... shor circuit , high temp and overload.Indications for power, signal, peak, and protectionExcellent device of radiator cooling ... 1/3 rated powerControlsPower switch, volume controlIndicatorsPower, clip , signal, protectProtectionAC fuse, short-circuit, clip and high tempPower ...