SeaKing Stores › 15in car subwoofer - 2ohm DVC - P2D2-15 15in car subwoofer - 2ohm DVC - P2D2-15 £240.00 15in car subwoofer - 2ohm DVC - P2D2-15. 400W RMS. Standalone driver, sold individually. Car-audio product; not marine-rated. Add To Cart Added! 15in car subwoofer - 2ohm DVC - P2D2-15. 400W RMS. Standalone driver, sold individually. Car-audio product; not marine-rated.