Rockford Fosgate P2D2-15 (11P2D215) Punch Series 15" 800W Peak Power Handling 2 Ohms Dual Voice Coil Component Car Subwoofer. When using the cast aluminum trim ring the woofer is first mounted with four screws, then the ring is placed on top of the woofer, aligning the final four holes of the woofer with ring.
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