Lanzar Opti SL150 2 Channel Slim Line Amplifier 150 Watts Per Channel x 2 @ 4 ohm Mosfet Power Supplies Hi/ Low Level Inputs Full Variable X-Overs Separate Left & Right Phase Control Wired Bass Jack Adjustable Gain Control Variable Bass Control Band Pass Switchable Dimensions: 10.8&&W x 2.97&&H x 18.6&&L