Alpine 8" Type R Single Enclosure | P.C. Richard & Son
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2) Alpine SWR-8D2 8" 1000w DVC Car Subwoofers+Mono Sub Amplifier+Amp Kit SWR8D2 - Walmart.com
Alpine S-DB8V-TRK Halo Series 8" ported dual subwoofer enclosure with two 8" S-Series subwoofers at Crutchfield