Alpine Halo R2-Series Dual 10" Voice Coil 4-Ohm Loaded Subwoofer Enclosure Black R2-SB10V - Best Buy
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Amazon.com: Alpine W10S4 10" 750 Watt Peak 250 Watt RMS 4-Ohm Car Audio Subwoofer Sub : Electronics
Alpine R2-W12D2 12” R-Series 750W RMS Subwoofer Dual 2 Ohm Car Audio Sub R2W12D2 793276084668 | eBay
SWE-815 300W 8
Alpine - SBG-1224BP Ready to use Band Pass Subwoofer (2Ohm)
Alpine S-SB12V 12" Subwoofer Box
Alpine
Alpine SWR-8D4 8" (20cm) Type-R Car Subwoofers 350W
Alpine SWS-15D2 15" Dual 2-Ohm 500W RMS Type-S Car Subwoofer
Alpine Jeep Gladiator Single 12-Inch Alpine Halo S-Series Preloaded Subwoofer Enclosure with ProLink S-SB12V (Universal; Some Adaptation May Be Required) - Free Shipping
Alpine SWE-815 Active Subwoofer - YouTube
Alpine SWR-12D4 - 12" DVC Type R Subwoofer - Signature Car Sound
Alpine - Powered Subwoofer Boxes
Alpine W10S4 BassLine Series 10" 4-ohm subwoofer at Crutchfield
Alpine - SBE-1244BR Ready to use Bass Reflex Subwoofer (4Ohm)