(4) Rockville RMSTS65B 6.5" 1600w Waterproof Marine Boat Speakers 2-Way Black Rockville RMST65B 6.5 2-Way 800 Watt Marine Boat Speakers in Black (Pair). CEA Compliant Power Ratings. Power Rating: 400 Watts Peak /100 Watts RMS Per Speaker. System Power: 800 Watts Combined. 6.5 2-Way Speaker System Fully Marinized Against Salt & Fresh Water Conditions. Completely Waterproof and rustproof. Stainless Steel Terminals. Molded ABS plastic basket. Polypropylene Mica Injected Cone Rubber Surround. High quality ferrite magnet. 1 inch Titanium Tweeter. Oversized 1 CCAW Kapton Voice Coil Large Magnet and Motor Structure. Pre-installed mounting screws included. Perfect for both marine, outdoor, and car use. Impedance: 4 Ohms. Frequency Response: 55Hz - 20KHz. Sound Pressure Level: 91dB @ 1w/1m. Total Diameter: 7.56. Cutout Diameter: 5.43. Total Height: 3.86. Mounting Depth: 2.56 Pair of 6.5 marine speakers 16.4 feet of Speaker Wire Mounting Screws Rockville RMST65B 6.5 2-Way 800 Watt Marine Boat Speakers in Black (Pair) CEA Compliant Power Ratings Power Rating: 400 Watts Peak /100 Watts RMS Per Speaker System Power: 800 Watts Combined 6.5 2-Way Speaker System Fully Marinized Against Salt &amp; Fresh Water Conditions Completely Waterproof and rustproof Stainless Steel Terminals Molded ABS plastic basket Polypropylene Mica Injected Cone Rubber Surround High quality ferrite magnet 1 inch Titanium Tweeter Oversized 1 CCAW Kapton Voice Coil Large Magnet and Motor Structure Pre-installed mounting screws included Perfect for both marine, outdoor, and car use Impedance: 4 Ohms Frequency Response: 55Hz - 20KHz Sound Pressure Level: 91dB @ 1w/1m Total Diameter: 7.56 Cutout Diameter: 5.43 Total Height: 3.86 Mounting Depth: 2.56