Polk DB5252 5.25" Component Speaker System with Marine Certification

The Polk DB5252 5.25" Component Speaker System with Marine Certification delivers legendary sound quality that transforms your vehicle's audio experience. Engineered and designed in Baltimore, Maryland, these speakers feature an IP56 waterproof rating and are tested for salt-fog, UV and humidity. The DB+ Series are Marine Certified to push the limits of durability, so you can take them anywhere. Superior Sound Engineering Polk's exclusive lightweight Dynamic Balance® Polypropylene Cones deliver spectacular midrange clarity, punchy bass and high efficiency. The system includes separate 5.25" woofers and 0.75" silk dome tweeters with external crossovers that direct frequencies to the proper drivers for seamless performance. Dynamic Balance is a proprietary Polk Audio technology using laser imaging to determine what combination of speaker materials create the least amount of resonance. Universal Installation Compatibility Built marine tough and designed for a universal fit, DB+ series pow