Enclosed Deck-Mount Coaxial Speaker System, Gloss White, Classic Grilles (100 W, 4 Ω) Enclosed in these beautiful, all-fiberglass enclosures are our maximum-performance, M-Series 7.7-inch coaxial tower speakers. Specifically tuned for small enclosure applications, these coaxial drivers deliver clean, loud audio in an open-air boat environment. The enclosures feature machined aluminum accents and each includes a very sturdy, machined aluminum deck mount with an adjustable angle. Professional installation is strongly recommended. For best results, we recommend powering these systems with an amplifier in the 75-150 W per channel range. Like all JL Audio marine speakers, this system is built to withstand a real saltwater marine environment and deliver years of listening enjoyment. Sold individually.