Pioneer GM-A4704 GM Series Class AB Amp (4 Channels, 520 Watts max)

Class AB amp; Bridgeable; Auto signal sensing & turn on; Variable high pass filter; Speaker level inputs; Includes high-level input harness; 4 channels; 520W max; 40W x 4 @ 4ohm ; Dim: 2.36"H x 12.8"W x 8.46"D;