Woofer(in,mm) 6-1/2, 160 Rated Impedance(Ω) 4 Continuous Power Handling(Watts RMS) 50 Mounting Depth(in,mm) 2-1/2, 62 These speakers do not come with a retail box or other accessories. They will arrive in plain brown packaging. Kicker Black OEM Replacement Marine 6.5" 4Ω Coaxial speaker Bundle - 4 Speakers These speakers do not come with a retail box or other accessories. They will arrive in plain brown packaging. The KICKER KM604B deliver stellar performance on a dollar by dollar basis. We ship these speakers with a set of stainless-steel mounting screws to ensure proper marine-grade installation without the worry of rust or the elements. Designed for the simplest of speaker installations, it's a breeze to get live-quality, full-range audio designed specifically for a marine environment. Spectacular highs and midrange sounds coupled with the simplest of speaker installations, provide full-range audio specifically for a marine environment. UV treatments on the coaxials' injection-molded cones, Santoprene surrounds, baskets and grilles help all models maintain in marine environments. These speakers can endure almost any weather conditions with splash-and-spray-resisting sealed motors, cones and locking terminal covers. Speaker hardware is forged from rustproof, 316L stainless-steel. Designed specifically for boat audio with weather-proof qualities that meet or exceed industry standards. KM604B Specifications Woofer(in,mm) 6-1/2, 160 Tweeter(in,mm) 1/2, 13 Tweeter Dome Material PEI Rated Impedance(Ω) 4 Peak Power Handling(Watts) 150 Continuous Power Handling(Watts RMS) 50 Sensitivity(1W,1m) 90 Frequency Response(Hz) 35-21k Mounting Hole Diameter(in,mm) 5-3/16, 132 Mounting Depth(in,mm) 2-1/2, 62