BOSS AUDIO PD4000 Phantom 4000-Watt, 1, 2, 4 Ohm Stable Class D Monoblock Car Amplifier with Remote Subwoofer Control 4000 W MAX Power @ 1 Ohm x 1 Channel 2000 W MAX Power @ 2 Ohm x 1 Channel 1000 W MAX Power @ 4 Ohm x 1 Channel Low Level Inputs, RCA Pre-amp Outputs, Switchable Phase Control Variable Low Pass Crossover, Variable Bass Boost, Variable Subsonic Filter Included Remote Subwoofer Control, Red LED Backlit Illumination Dimensions: Depth 15 x Width 10.3 x Height 2.3 6 Year Platinum Online Dealer Warranty