Infinity Kappa 83WDSSI Kappa Series 8" subwoofer with selectable 2- or 4-ohm impedance at Crutchfield
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Toro Audio Force 8 Car Subwoofers | 8 Inch Subwoofer | 800 Watts RMS – TORO AUDIO
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Infinity Primus-1270 Primus 12 Inch Subwoofer - Infprimus1270am : Target
DS18 CAR AUDIO ELITE 12" SUBWOOFER (ELITE-Z12 Specifications, Review, Price) – Droppin HZ Car Audio
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Infinity Kappa 103WDSSI Kappa Series 10" subwoofer with selectable 2- or 4-ohm impedance at Crutchfield
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Club 1024 | 10" (250mm) and 12" (300mm) car audio subwoofers
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Amazon.com: NVX NSW124v2 12" 700W Peak (350W RMS) Dual 4-Ohm N-Series Car Subwoofer (NSW124 Version 2) : Electronics
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BM15D2 | 15" Beast Master Car Audio Subwoofer, 6500W, Dual 2ohms, Each - Beast Master
Amazon.com: WOOFER, 10 : Electronics
DD AUDIO 2508G-D4 8" USA MADE 3600W DUAL 4-OHM CAR SUBWOOFER BASS SPEAKER NEW | eBay