Sound Storm FR1600.4 Force 1600 Watt, 4 Channel, 2 to 8 Ohm Stable Class A/B, Full Range, Bridgeable, MOSFET Car Amplifier with Remote Subwoofer Control 400 W MAX Power @ 2 Ohm x 4 Channels 200 W MAX Power @ 4 Ohm x 4 Channels 800 W MAX Bridged Power @ 4 Ohm x 2 Channels Full-Range, Class A / B Topology, MOSFET Power Supply Low and High Level Inputs, Variable Low Pass Crossover, Fixed High Pass Crossover Switchable Bass Boost, Variable Input Gain Control, Input Sensitivity Selector, Remote Subwoofer Control Dimensions: Depth 11.4 x Width 9.7 x Height 2.4 6 Year Platinum Online Dealer Warranty