800 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 Wired Secondary Remote Gain Control Included Calibrated Visual Clipping Indicator Protection Circuit: Impedance Over-load, Speaker Short, Circuit, Thermal Overheating, and DC Output Specifications Peak Power: 1600 watts Subwoofer Frequency Range: 10Hz - 300 Hz Dimensions (in Inches): 10.25x7x2.25 Depth: 10.25 Channels (mono): 1 4-ohm Power: 400 watts x 1 4-ohm Mono Power: 400 watts x 1 2-ohm Power: 600 watts x 1 1-ohm Mono Power: 800 watts x 1 Nominal Impedance: 1 Height: 2.25 Width: 7 Subwoofer EQ Frequency: 40 Hz- 100 Hz Low-Pass Crossover Freq: 35 Hz - 250 Hz High-Pass Crossover Freq: N/A Crossover Slope: 24 dB Input Sensitivity: 0.25 V - 7 V S/N Ratio: >95 dB Strapped Output Power @ 2ohms: 1600 watts x 1 Output Power (14.4 V) @ 4 ohm: 400 watts x 1 Output Power (14.4 V) @ 2 ohm: 600 watts x 1 Output Power (14.4 V) @ 1 ohm: 800 watts x 1 Frequency Response: 10 Hz - 300 Hz | Powerbass | | PBX-800.1D | Mono Class D 600W x 1 (2 ohm), 800W x 1 (1 ohm) Amplifier | Black/Gray | Best Buy