Marine loudspeakers built to survive the rigors of the harsh marine environment with Plus One™ polypropylene woofer and midrange cones, Mylar tweeter domes, one piece cast polymer baskets, sealed magnets, and rubber woofer surrounds for high SPL performance. Speakers are UV resistant in a marine grade IPX3 (IPX5 from front) weather resistant and include RGB perimeter illumination and go through 300 hours of salt spray testing.