Class AB; Bridgeable; Variable input voltage; QTD (Quick Thermal Dispersion) technology heat sink; Low-noise preamp; Low-level RCA inputs & outputs; 2- & 3-channel operation modes; Built-in variable electronic crossover (HP & LP); Onboard bass boost; Easily ties into OEM audio systems; 800W max; 200W RMS x 2 @ 4ohm ; 400W RMS x 2 @ 2ohm ; 800W RMS x 1 @ 4ohm bridged; Dim: 3.8H x 12W x 11.4D;