Clarion XR2420 XR Series 570W Amplifier: * 4/3/2-channel * 570W max * 60W x 4 * 90W x 4 * 180W x 2 * Independent front and rear adjustable frequency * High and low pass electronic crossover (4-channel) * 30Hz - 3kHz * Speaker level input: 4-channel * MOSFET power supply * Selectable bass boost * Gold-plated RCA, speaker and poser connectors