This bundle features the powerful PowerBass ACS-1000D - 1000 Watt x 1 @ 1-Ohm Amplifier, and the convenient PowerBass PB-GAIN1 - Remote Level Controller. The ACS-1000D delivers 1000 watts of high-efficiency Class D power, 1-OHM stability, MOSFET power supply, and protection circuitry. You can fine-tune your sound with variable low pass electronic crossover, selectable 12dB bass boost EQ, and more. The compact design fits seamlessly into any vehicle with dimensions of 12.0" x 7.1" x 2.0". Its versatile features include remote level control port for optional PB-GAIN1 controller, variable subsonic frequency, and switchable subwoofer EQ. The PB-GAIN1 delivers easy bass control with a wired remote variable level controller, bass knob, cable, and mounting screws. Compatible with ASA, ASA3, and ACS amplifier series, the PB-GAIN1 ensures you can adjust the bass according to your preferences for an enhanced listening experience. Upgrade your car audio system with this dynamic bundle for superior performance and control.