Rockville UT65B 400W 6.5" Marine Speakers, IPX6 Waterproof, Swivel Mount, True Coaxial Design, Perfect for UTV/ATV/Boat is up for auction in Musical Instruments. The current bid is $16.00, 87% below the $124.95 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.