Lanzar WDN2000.1D Wrath Series 2000 Watt Compact Class-D Mono Block Subwoofer Amplifier 2000W Peak Power @ 1 Ohm - Green & Red Power Status Indicators - Low Pass Filter: (50-150Hz) - Fuse:125A 1400W Peak Power @ 2 Ohm - Phase Switch: 0 or 180 degree - Hi-Level Signal Auto Turn-on /off - Dimensions (L x W x H): 8.19" x 5.63" x 1.99" 900W Peak Power @ 4 Ohm - Adjustable Input Sensitivity - Thermal, Short and Overload Protection Circuits RCA Low Level Input - 0 to +12dB Variable Bass Boost - Subwoofer Gain Remote Control High Level Input - Subsonic Filter: (20-50Hz) - Soft Delay Remote Turn-On