MB Quart Nautic NKE116 6.5-Inch 2-Way Coaxial Speaker System 6.5" 2-Way Coaxial Speaker System with 60-130 Watt Power Rating and 38Hz-32kHz Frequency (Sold in Pairs) MB Quart UV-resistant fiber-reinforced ABS composite speaker baskets and grilles for low resonance; Insert injection-molded magnet systems that provide optimized protection against humidity and mechanical influences Compliance to the ASTM D4329-05, which ensures resistance to deterioration, physically, electrically and mechanically when exposed to all combinations of ultra-violet, natural sunlight, extreme heat, extreme cold and saltwater in marine applications Nautic crossover with special protective sealing lacquer and gold-plated terminals to resist corrosion; Protected voice coils from direct water spray Corrosion-resistant connectors, stainless-steel mounting hardware and sealed solder joints protect against damaging moisture and salt