Clarion XR2410 400 Watt 4 / 3 / 2 Channel Amplifier Power @ 4-Ohm 60w x 4 Power @ 2-Ohm 90w x 4 Bridged Power @ 4-Ohm 100w x 2 Number of Channels 4/3/2 MOS-FET Power Supply 2-Ohm Stable Selectable Bass Boost; 0/6/12dB @ 50Hz Adjustable -12db/Oct.High/Low Pass Crossover 50-300Hz Gold Plated Connectors; RCA/ Speaker/ Power Speaker Level Input Dimensions7-7/8" x 11" x 2-1/4"