MB Quart NKF116 Nautic 2-Way Coaxial Speaker System, 6.5-Inch 6.5-Inch 2-way coaxial speaker system with 50-100 watt power rating and 65Hz-25kHz frequency UV resistant fiber-reinforced ABS composite baskets and grilles Insert injection-molded magnet systems Meets or exceeds ASTM requirements 3/4-Inch tweeter with titanium dome Nautic crossover with special protective sealing lacquer Gold plated terminals to resist corrosion Protected voice coils from direct water spray Sealed solder joints