5 CORE 15 inch Subwoofer Replacement PRO DJ Speaker Sub Woofer Loudspeaker Wide Full Range Loud 250 Watts RMS (2200W PMPO) 90oz Magnet 15-185 MS 250W - Walmart.com
Amazon.com: DS18 EXL-X15.2D Car Subwoofer 15" 2500 Watts Max Power 1250 Watts RMS Fiber Glass Dust Cap Red Aluminum Frame Dual Voice Coil 2+2 Ohm Impedance - Competition Grade Bass - 1 Speaker : Electronics
1x Gravity 15 Inch 2400 Watt Car Audio Subwoofer w/ 2 Ohm DVC Power 15 in. Sub | eBay
HIPPOXL152R - 15 inch Subwoofer | 3000 Watts RMS Dual 2 Ohm 4" V.C. Mega Subwoofer