JBL EON718S 1500-watt 18-inch Powered PA Subwoofer | Sweetwater
Stage 1220B subwoofer enclosure | Dual 12" Stage subwoofers mounted in a slot-ported enclosure
Amazon.com: Gravity 1x 12 Inch 2000 Watt Car Audio Subwoofer w/ 2 Ohm DVC Power 12 in. Sub - Feature Dual Voice Coil, Thick Magnet, Design for Car, ATV, Van, High Performance Car Show : Electronics