Marine Certified 2-Channel Class D Car Amplifier Peak Power Rating: 880 Watts RMS Power Rating: 4 ohms: 150 watts x 2 chan. 2 ohms: 220 watts x 2 chan. Bridged, 4 ohms: 440 watts x 1 chan. Cutting-edge Micro Class D technology allows amplifiers to be extremely compact LED power (blue) and protect (red) indicators Conformal Coated Marine grade circuit board Balanced Differential Inputs, to eliminate noise picked up by signal cables Speaker-level (high-level) inputs 3-way protection circuitry (thermal, overload, and speaker short protection) Input sensitivity: 0.2V-5V Selectable crossover modes: FULL / HPF / LPF Variable high-pass filter (40-500 Hz) Variable low-pass filter (40-500 Hz) Frequency Range: 20 - 20KHz CEA-2006 compliant amplifier Dimensions: 6.8"L x 3.3"W x 1.5"H 1-year Warranty from the Original Purchase Date