Amazon.com: Audioengine S8 Powered Subwoofer Speaker - 250W 8-inch Home Subwoofer with Built-in Amplifier and Dual Audio Inputs for Home Speaker System (White) : Electronics
Amazon.com: Rockford Fosgate R2D2-10 500W 10" 2-Ohm DVC Subwoofer Power Sub Woofer (4 Pack) : Electronics
Amazon.com: Sound Storm Laboratories LOPRO10 10 Inch Powered Under Seat Car Audio Subwoofer - 1200 Watts Max, Built-in Amplifier, Low Profile, Remote Subwoofer Control, for Truck, Boxes and Enclosures : Electronics
Amazon.com: Pyle Car Vehicle Subwoofer Audio Speaker - 12 Inch 1200 Watt Power Ultra Slim DVC Subwoofer w/ Dual 2.5” Kapton Voice Coil, 4 Ohm Impedance, 75 Oz Magnet - for Vehicle Stereo Sound System PLWCH12D : Electronics
Amazon.com: Rockford Fosgate R2SD2-10 Prime 2-Ohm DVC Shallow 10” Subwoofer 200 Watts RMS / 400 Watts Max : Electronics
Amazon.com: Planet Audio P8AWK Low Profile 8 Inch Under Seat Powered Car Subwoofer - 800 High Output, Built-in Amplifier, for Truck, Boxes and Enclosures, Remote Subwoofer Control : Electronics
Amazon.com: Audison APBX 10 AS2 Prima Series 10" Active Sub Box with Dynamic Bass Tracking : Electronics