Focused on designing marine speakers that boat lovers will brag about, Kicker crafted these KM6000 coaxial speakers with 1/2" tweeters so they sound as great as they look. UV treatments on the injection-molded polypropylene cones with Santoprene surrounds, baskets, and grilles help all models to maintain performance in marine environments. These speakers can ensure most any weather condition with their splash-resistant sealed motors, cones, and locking terminals. Speaker hardware is forged from rustproof stainless steel. 4 ohm impedance. 50 watts RMS; 150 watts peak power. Requires 2-1/2" diameter mounting depth.