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Best Buy: Pioneer Champion Series 12" Single-Voice-Coil 4-Ohm Subwoofer Black TSW310S4
Best Buy: Pioneer Champion 12.95" 1 kW Woofer TS-W3002D4
2) Pioneer Champion TS-W310S4 12" 2800 Watt 4 Ohm Subwoofers Car Audio Subs | Audio Savings
Pioneer Champion Series 12" Dual-Voice-Coil 4-Ohm Subwoofer Black TSW311D4 - Best Buy
Amazon.com: Pair of Pioneer TS-A300D4 12” Dual 4 Ohms Voice Coil Subwoofer - 1500 Watts (2 Subwoofer) : Electronics
TS-W310S4 - Pioneer 12" 400W RMS Single 4-Ohm Champion Series Subwoofer
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Pioneer TS-W310D4 Champion Series 12" subwoofer with dual 4-ohm voice coils at Crutchfield
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Pioneer TSW312D4 Car Subwoofer
Pioneer TS-A300D4 12” Dual 4 ohms Voice Coil Subwoofer
LAB SlapBox™ 2.25 ft^3 Ported MDF Enclosure for Single Pioneer TS-W3002D2 / TS-W3002D4 Sub
Pioneer TS-A301S4 | 500W RMS 12" Champion Series Subwoofer
Pioneer Champion 12" Subwoofer
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Kenwood KFCXW1241 Excelon Series 12" Subwoofer | BrandsMart USA
TS-A301D4 - 12" - 1600 W Max Power, Dual 4 Ohm Voice Coil, Champion Series- Component Subwoofer | Pioneer Electronics USA
Pioneer TS-A301S4 | 500W RMS 12" Champion Series Subwoofer
