Polk Audio DB1042 Marine Certified Subwoofer - 10

Polk's rich . deep bass gets an on-the-go overhaul with the marine-tough . yet ruggedly sophisticated . DB+ subwoofers. With a space-saving design you get thunderous sonic output that fits in nearly any vehicle. Marine certified with IP56 rating (water- and dirt-resistant) and tested for salt-fog . UV and humidity.