MB Quart NF1-116, Nautic Formula 6.5" 2-Way Coaxial Marine Speakers - White

Tweeters    .75 Inch Composite Dome: Very smooth musical response, high output with minimal required amplifier power. Cone Material    6.5 inch Composite Poly Midrange: Water resistant composite polypropylene cone with temperature stable UV Butyl rubber surround mounted on a lightweight composite frame. Surround / Cone Coupling    UV Butyl: Butyl Rubber remains musical in all weather. Does not stiffen in cold. ​Voice Coil / Former Assembly    High Temperature Voice Coil and Former: Voice coil is high temperature copper, wound on an aluminum former which allows the voice coil to handle more power while remaining light in weight. Spider    Woven fiber composite spider to stabilize the cone and voice coil in all musical situations. Cooling System    Front and rear venting allows air passage through the spider and back plate to exchange air over the voice coil. Crossover    6dB high-pass: Clean and simple crossover design allows the most possible signal to get to the speaker from your sour