Pioneer TS-W310D4 Champion Series 12" subwoofer with dual 4-ohm voice coils at Crutchfield
Pioneer TS-W312D4 12" 12 inch Dual Voice Coil 4 ohm Car Component Subwoofer | eBay
Pioneer TS-W303F 12" Free-air Subwoofer at Crutchfield
Amazon.com: PIONEER TS-WX130EA Pre-Amplified Active Subwoofer, 160 W : Electronics
Pioneer TS-W303R Champion Series 12" 4-ohm subwoofer at Crutchfield
Pioneer TS-WX1220AH - 12" - 3000w Max Power, Built-In 1200w Output Amplifier - Ported Active Enclosure Subwoofer - Creative Audio
TS-A30S4 - 12" - 1400w Max Power, Single 4W Voice Coil, IMPP Cone - Subwoofer | Pioneer Electronics USA
TS-WX1220AH - 12" - 3000w Max Power, Built-In 1200w Output Amplifier - Ported Active Enclosure Subwoofer | Pioneer Electronics USA
TS-WX70DA - Car Subwoofers | Pioneer
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 Ts-1200m 12" 1400w Max Subwoofer for sale online | eBay
Pioneer A-Series 12 in. Subwoofer TS-A30S4 - The Home Depot