Alpine SWR-8D4 8" Inch 1000 Watt Dual 4 Ohm Type-R Car Subwoofer Sub SWR8D4 - Walmart.com
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Alpine SWR-8D2, R Series Dual 2 Ohm Voice Coil 1000 Watts Subwoofer, 8"
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Focal 8" 250W Passive Car Subwoofer Box & Alpine 300W 2-Channel Car Amplifier Bass Package & Amplifier Wiring Kit
Alpine S-W8D2 S-Series 8" subwoofer with dual 2-ohm voice coils at Crutchfield
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SBR-S83V - Alpine 8" Single Ported Enclosure Loaded with a Type-R Subwoofer by Alpine. $167.00. Alpine SBR-S83V 8" 1000… | Subwoofer, Subwoofer enclosure, Car audio