Autotek Amplifier Features: Low Noise Pre-Amplifier Low Level RCA Inputs and Outputs Easily tie into OEM audio systems Class A/B Circuitry Designs Fully Adjustable 12dB Crossovers PWM MOSFET Power Supply Nickel-Plated Brass Screw Down Connectors LED System Protection Circuitry Aluminum heatsink with a black finish Symmetrical Profile Type: Amplifiers RMS Power: 2 ohm: 1 x 1600 4 ohm: 1 x 800 Frequency Response: 15Hz-150Hz THD: SNR: > 95dB Dimensions: 14.4 x 2.32 x 8.8