Alpine R-W10D4 Car Audio Type R Dual 4 Ohm 1500W 10" Subwoofers with Install Kit Alpine R-W10D4 Car Audio Type R Dual 4 Ohm 1500W 10" Subwoofers with Install Kit. Subwoofer Exception : Our warranty does not cover blown voice coils, or subwoofers that have been punctured.
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