Quick Overview The GM-DX971 is a 1-channel subwoofer amplifier that can deliver up to 1,200 watts RMS to your subwoofer, producing powerful bass with a strong and heavy beat. CTA-2006 compliant, this highly efficient Class D technology provides impressive, high-quality power in a compact chassis. The speaker-level inputs allow you to install this amp in a factory system without RCA connections. The built-in low-pass filter lets you optimize the sound for your vehicle's interior. A wired bass control remote also lets you easily control the amount of bass from the subwoofer output. The GM-DX971 amplifier uses high-current, high-grade electronic components and gold-plated RCA connections to ensure maximum performance.