Lynx Audio SW-866 Active 12-Inch Subwoofer with Built-In 550W Amplifier The SW-866 is designed to be mounted in the trunk / cargo space of the vehicle and the pre-wired harness makes it very easy to connect the power, ground and signal wires. 12" Woofer for Max Bass response. RCA and speaker level inputs for use with aftermarket and factory head units. The wired remote will give you full-control of the bass so that you can adjust it to your liking as you listen to difference genres of music. Active 12" Subwoofer, Thermal and Short Circuit Protection, Wired Remote for Frequency and Gain Control. Max Output Power: 550 Watts Complete wiring harness provided