1,200 Watt High Efficiency Class D Design Front Load Terminal Design 1-OHM Stable Mono Block Amplifier Ultra Low Current Draw Double Sided Copper Plated PCB PWM MOSFET Power Supply Digital Sound Optimization Circuitry High Damping Control Circuit Variable Subsonic Filter High Current Voltage Ripple Rejection Circuitry Balanced RCA Inputs Selectable Auto Turn On Circuit Remote Soft Delay Turn On/Off Circuit 40 Click Variable Low Pass Electronic Crossover Variable Gain Control Calibrated Visual Clip Indicator Wired Secondary Remote Gain Control Included Protection Circuit: Impedance Over-load, Speaker Short, Circuit, Thermal Overheating, and DC Output Specifications Peak Power: 2400 watts Subwoofer Frequency Range: 10Hz - 300 Hz Inputs: RCA (speaker level compatible) Dimensions (in Inches): 11.25x7x2 Depth: 11.25 Channels (mono): 1 4-ohm Power: 500 watts x 1 4-ohm Mono Power: 500 watts x 1 2-ohm Power: 800 watts x 1 1-ohm Mono Power: 1200 watts x 1 Variable Subsonic Freq: 10 Hz - 50 Hz Height: 2 Width: 7 Low-Pass Crossover Freq: 35Hz - 250 Hz High-Pass Crossover Freq: N/A Crossover Slope: 24 dB Input Sensitivity: 0.25 V - 7.0 V S/N Ratio: >93 dB Total Harmonic Distortion: 0.4% at Rated Power Strapped Output Power @ 2ohms: 2400 watts x 1 Output Power (14.4 V) @ 4 ohm: 500 watts x 1 Output Power (14.4 V) @ 2 ohm: 800 watts x 1 Output Power (14.4 V) @ 1 ohm: 1200 watts x 1 Frequency Response: 10 Hz - 300 Hz | Powerbass | | PBX-1200.1D | Mono Class D 800W x 1 (2 ohm), 1200W x 1 (1 ohm) Amplifier | Black/Gray | Best Buy