PIONEER TSW312D4 12-INCH 1600 WATTS MAX DUAL 4-OHM VOICE COIL CAR SUBWOOFER -NEW | eBay
Pioneer TS-W311 | Champion Series Subwoofer from Pioneer Gulf
Pioneer TS-W311 - 12" Subwoofer
Pioneer(R) TS-W311S4 Champion Series 12" 1,400-Watt Subwoofer (Single Voice Coil) Car Speakers - Newegg.com
Pioneer TS-W312S4 | Car Entertainment, Subwoofers, Champion Series Subwoofer, Champion Series Red Subwoofer | Pioneer Middle East - Car Stereo, Car Subwoofer, Amplifier
TS-A301S4 - 12" - 1600 W Max Power, Single 4 Ohm Voice Coil, Champion Series- Component Subwoofer | Pioneer Electronics USA