G-440FRONT PANEL5POWER ON/OFFBRIDGELED for indicating the work mode of the amplifier. This LED will light when the bridgeswitch at rear panel on the bridge position.INPUT ATTENUATORSInput gain potentiometers, with 40 detented steps, attenuate the level of the external signalsent to the respective channels of the amplifier.SIGNAL LEDSIndicators of signals on output. If lit, indicate that the relative outputs of the amplifierchannels are sending an audio signal.CLIP LEDSAmplifier CLIPPING indicators indicate the clipping of the amplifier, i.e. when the audiosignal level exceeds the output capacity of the amplifier channel. When these LEDs flashreduce the input signal level.