Bridgeable. Variable input voltage. QTD (Quick Thermal Dispersion) technology heat sink. Low-noise preamp. Low-level RCA inputs and outputs. 2 and 3-channel operation modes. Built-in variable electronic crossover (HP and LP). Onboard bass boost. Easily ties into OEM audio systems. 2,000W max. 500W RMS x 2 @ 4ohm. 1,000W RMS x 2 @ 2ohm. 2,000W RMS x 1 @ 4ohm bridged. Warranty: One year. 17.8 in. W x 11.4 in. D x 3.8 in. H.