Marine loudspeakers will 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. To increase acoustics and installation versatility, these speakers can be coaxially mounted or separated and installed as a component system. Great for working around placement restrictions.