Infinity, Amplifier 1,000 Watts RMS At 2 Ohms Reference Series Mono Subwoofer AmplifierReference 10001A mono subwoofer amplifier delivers a blistering 1,000 Watts RMS using Class D amplifier topology to ensure cool running and minimal current draw. Speaker level inputs allow this amplifier to integrate into almost any system, even one using your car's factory radio and Infinity includes RCA to speaker wire adapters so you'll make the right connections. You can use the low pass filter and variable bass boost to maximize the performance