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Alpine RS-W12D4 12-inch R-Series Shallow Subwoofer With
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Alpine R2-SB10V Single Type R2 10-in Subwoofer in Vented Enclosure - Creative Audio
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Alpine SWR-1042D (SWR1042D) 10" Dual 4 ohm Type-R Car Subwoofer
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Alpine SWR-1042D Type R10” Subwoofer with Dual 4-ohm Voice Coils (Used). | eBay
Alpine R-Series 8" Dual 2-Ohm Mobile Subwoofer - R2W8D2 | Abt
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Alpine R-Series 10" Dual 4-Ohm Shallow Subwoofer - RSW10D4 | Abt
Best Buy: Alpine Type R 10" Dual-Voice-Coil 4-Ohm Subwoofer SWR-1043D
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Alpine SWR-1042D Type R10” Subwoofer with Dual 4-ohm Voice Coils (Used). | eBay
Alpine SWR-T10 Woofer, 600 W RMS, 1800 W PMPO, 1 Pack - Walmart.com
