1 x 1000 Watts RMS @ 4 Ohms - High-Efficiency, Heavy Aluminum Heat sink - Tri-Mode Capable - Power Protection LED Indicators - Fuse: 15A x 2 * 1 x 2000 Watts Max @ 2 Ohms - Remote Subwoofer Bass Control - Silver RCA Inputs - Advanced Protection Circuitry - Dimensions: 10.25"W x 2.36"H x 9.45"L * MOSFET Automatically Switches to Maintain Rated - Electronic Crossover Network - Variable Subsonic Filter(15Hz-35Hz,24dB/Octave) - Soft Turn On/Off * Power a Wide Range of Battery Voltages - Bass Boost Circuit - Variable Low pass Filter (35Hz-250Hz,24dB/Octave) - Frequency Response:15 Hz-150 Hz * Stiffly Regulated PWM-Type Power Supplies - 2 Ohm Stereo Stable - Phase Control 0~180 - S/N Ratio:95dB