Kicker utilized state-of-the-art components and equipment to establish this premium performance line for boats. MS Coaxial Speakers are extravagant as the ultimate drop-in upgrade, enduring a gauntlet of exhaustive in-house UV testing, salt/fog testing, and anti-corrosive measures. Real Marine means you have confidence and peace of mind. Premium Marine Speakers are weather-proof, undergoing rigorous testing to ensure it meets or exceeds marine industry standards Premium Marine Speakers are created by discerning audiophiles for a marriage of acoustic performance and durability, ensuring the fun and excitement throughout the cruise. KICKER Premium Marine products feature key moisture-deterring characteristics that set them apart as a true product line built to use in the outdoors. It's all Real Marine. Component system design for increased mounting options and sonic accuracy Carbon-fiber-infused midrange woofers for highly accurate sound reproduction Weather- and UV-resistant, loud 28mm Tetoron audiophile tweeters Internal Butterworth 12dB/octave crossovers for superior smoothness and protection KICKER Real Marine designed specifically for marine environments with marine-compliant terminals, splash-and-spray resistance, and more Glass-added nylon woofer basket frames for improved thermal performance and toughness Equipped with RGBW LED lighting Includes both white and charcoal grilles Specifications Woofers (in, mm) - 6-1/2, 165 Tweeters (in, mm) - 1-1/8, 28 Tweeter Dome Material - Tetoron Rated Impedance (Ohms) - 4 Rec Amp Power (watts RMS) - 15-100 Peak Power Handling (watts) - 200 Sensitivity (dB; 1W, 1m) - 89 Frequency Response (Hz) - 55-25k Mounting Hole Diameter (in, mm) - 5-7/16, 139 Top Mount Depth (in, mm) - 3-1/4, 83 Crossover - 12dB/octave, high pass at 3.2Hz Grilles - Charcoal and white