Amazon.com: Rockville RV8.2A 800 Watt Dual 8" Car Subwoofer Enclosure+Mono Amplifier+Amp Kit black : Electronics
Amazon.com: Sound Storm Laboratories CG8D 8 Inch Car Subwoofer - 800 Watts Maximum Power, Dual 4 Ohm Voice Coil, Sold Individually : Everything Else
Amazon.com: BOSS Audio Systems CXX10 Chaos Exxtreme Series 10 Inch Car Subwoofer - 800 Watts Max, Single 4 Ohm Voice Coil, Hook Up to Amp : Electronics
Amazon.com: BOSS Audio Systems MRGB10W 10 Inch Marine Audio Subwoofer - 800 Watts Max, Dual 2 Ohm Voice Coil, Multicolor Illumination, Weatherproof, Sold Individually, for Boxes Enclosures, Hook Up to Amplifier : Electronics
Amazon.com: Planet Audio PA8W Amplified Car Subwoofer - 800 Watts Max Power, Low Profile, 8 Inch Subwoofer, Remote Subwoofer Control, Great for Vehicles That Need Bass But Have Limited Space : Electronics
Amazon.com: Lanzar 8 inch Car Subwoofer Speaker - Black Non-Pressed Paper Cone, Aluminum Voice Coil, 4 Ohm Impedance, 800 Watt Power and Foam Edge Suspension for Vehicle Audio Stereo Sound System - MAXP84 : Electronics