Amazon.com: Pioneer TS-A300D4 12 Inch 1500 Watts Max Power Dual 4-Ohm Voice Coil A Series Car Audio Stereo Subwoofer Loudspeakers / Free Alphasonik Earbuds : Electronics
Pioneer Premier TS-W3001D2 at Onlinecarstereo.com
Pioneer TS-WX1220AH Dual 12" Ported Enclosure Active Subwoofer with Built-in Amplifier - Walmart.com
TS-W3004SPL - Premier® 12" SPL Component Subwoofer with 3000 Watts Max. Power | Pioneer Electronics USA