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Amazon.com: Blaupunkt GTHS131 GTHS131 Super-Flat 200-Watt-Max Active Subwoofer, Black : Electronics
Amazon.com: Pioneer TS-WX1220AH Dual 12" Ported Enclosure Active Subwoofer with Built-in Amplifier, Black : Electronics
Amazon.com: wet sounds | Stealth AS-8 | High Efficiency, 8" Active Marine Powered Subwoofer with Built-in 350 Watt Amp | Remote Level Control Included (Black) : Electronics
Amazon.com: PIONEER TS-WX130EA Pre-Amplified Active Subwoofer, 160 W : Electronics
Amazon.com: Gravity GRWF10 10-Inch 550 Watts Car Audio Under Seat Powered Amplifier Subwoofer Powerful Loud Speaker Pro Audio Active Aluminum Super Slim with High Power Long-Throw Truck Bass Sub : Electronics
Amazon.com: Cerwin Vega VPAS10V2 10" 550W Max / 200W RMS Low Profile Active Powered Subwoofer with Built in Amplifier Module for Working with All Vehicles : Electronics
Amazon.com: MTX TN8MS Terminator 8 Inch Micro Compact Amplified Subwoofer Enclosure for Small Vehicles with Class A/B Amplifier, Variable Bass Boost, External Bass Control, and Smart Engage Auto Turn On Circuitry :
Amazon.com: Rockville RW8CA 8" 600 Watt Low Profile Under-Seat Active Powered Car Subwoofer, Black : Electronics
Amazon.com: ELAC Varro Dual Reference DS1200 12" 1200W Powered Subwoofer with App Control/Auto EQ, Gloss Black : Electronics