Amazon.com: Alpine SWT-12S4 1000 Watt 12" Car Audio Bass Tube Subwoofer Bundle with Amplifier and Amp Kit : Electronics
Amazon.com: American Sound Connection 312H Universal Large Car Trunk Triple 12" Sealed Subwoofer Rear Angle 3 Sub Box Stereo Enclosure and S-W12D2 Type S Series Sub Dual 2 Ohm 1200W Peak 12"
Amazon.com: Alpine W12S4 12" 750 Watt Peak 250 Watt RMS 4-Ohm Car Audio Subwoofer Sub : Electronics