Infinity's Kappa Marine Speakers take advantage of Infinity's world-class audio engineering and music reproduction with purpose-built marine speakers that will survive the rigors of the harsh marine environment. The line features the three most popular sizes for boats and jet skis. 8" 6-1/2" coaxial 3-way convertible speaker system and 10" woofer have Plus One™ polypropylene woofer and midrange cones, Mylar tweeter domes (except subwoofer), baskets One-piece cast polymer, sealed magnets and rubber surround woofer for high SPL performance Wind, water or engine noise won't drown them out Speakers are UV resistant to an IPX3 marine rating (IPX5 from front) are weather resistant and include RGB perimeter lighting and go through a 300 hour salt spray test. And they're Infinity, ready to make amazing music on the water. Whether it's a daily wash, a picnic on a quiet cove or an all-out race through big waves, Infinity has the right setup for your boat..PZA MORE SPECS