Powerful and Compact 415-Watt Subwoofer AmplifierA 415-watt mono subwoofer amplifier with on-board variable electronic crossover, theGX-A3001 features a compact footprint of just 2-1/16"(52mm) high, 8-1/8"(206mm)wideand 11-7/16" (291mm) deep.FeaturesCast-aluminum heat sinkBuilt-in electronic crossover networksPower to drive your woofers to distractionGX-A3001Mono Subwoofer Amplifier