Rockville RMW8A 8" 800 Watt Car Powered Subwoofer In a Tunnel Slot Ported Enclosure Box With 70 oz Magnet. All About Your RMW8A How To Set Up Your RMW8A Videos of RMW8A The key to this performance lies in the precise tuning of its Rockville subwoofer driver into an efficient tunnel system with a slot-ported design.
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