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2) Alpine Type-R R2-W12D2 12" 750w Subwoofers+Vented Box+Mono Amplifier+Amp Kit - Rockville Audio
LAB SlapBox™ 2.25 ft^3 Ported MDF Enclosure Box for Single Alpine 12" Type-R Subwoofer
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Alpine Type-R SWR-12D4 3000W Peak (1000W RMS) 12" Type-R Series Dual 4-Ohm
5 Best Box for Alpine Type R 12 (Reviews) in 2022
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Best Alpine Type R 12" Subwoofer for sale in Canton, Georgia for 2022
Alpine Audio 12" Type R & Type X Custom Aero Ported Box X-W12D4 R-W12D4 R-W12D2 | eBay
