Planet Audio P10AWK Amplified Car Subwoofer - 1000 Watts, Low Profile, 10 Inch Subwoofer, 8 Gauge Amplifier Installation Kit Included. Great for Vehicles That Need Bass But Have Limited Space
Amazon.com: Bose Sub 1 Powered Bass Module for L1 PRO Systems and powered loudspeakers - Powered Subwoofer for Loudspeakers : Musical Instruments