(2) MB QUART NF1-116B 6.5" 80 Watt Marine 2-Way Coaxial Black Speakers For Boat

The NF1-116B is a 6.5-inch two-way marine coaxial speaker sold as a pair with black grills, sized for boats, RVs, and off-road vehicles. Each speaker handles 40W RMS and 80W peak, and 89dB sensitivity means head unit power alone produces usable volume. Response spans 35Hz to 21kHz at 4 ohms. A .75-inch composite dome tweeter handles high frequencies with high output and minimal amplifier power, fed through a clean 6dB high-pass crossover that passes as much signal as possible. The 6.5-inch cone is water resistant composite polypropylene with a UV butyl rubber surround that stays flexible in cold weather. Inside, a high temperature copper voice coil is wound on an aluminum former, and front and rear venting exchanges air across the motor to hold temperatures down under load. A woven fiber composite spider keeps cone and coil aligned at high excursion, and the poly composite frame adds strength without resonance that would color the tone. Integrated composite grills are UV treated against sun fade, and stainless steel screws handle mounting. Protection is IPX67 with CEA426B testing behind it, so salt spray, rain, dust, and wash-downs are all in scope. The pair weighs 3.25 lb, needs a 5-inch cutout, and measures 7 inches outside with 2.29 inches of mounting depth, which drops into most existing openings. Black grills suit darker dashes, towers, and cabin panels.