POLK AUDIO DB402 (DB+ Series) 4" Coaxial Marine-Certified Speakers — Black

The POLK AUDIO DB402 DB+ Series 2-way coaxial speaker brings marine-grade audio to cars, boats and powersports. It delivers 135W peak power with a 4-ohm impedance and combines a 4" polypropylene woofer cone with a 3/4" silk dome tweeter mounted on a robust rubber surround. A built-in crossover directs highs and lows to the correct drivers; the speaker handles up to 45W RMS and covers 60-22kHz for full-range performance and punchy bass. Polk’s proprietary Dynamic Balance process — using laser imaging to select optimal material combinations — reduces distortion and produces wide, even dispersion. Rated IP56 for marine use, the DB+ Series features coated steel baskets and components tested for Salt-fog, UV & Humidity, making it suitable for freshwater boats, motorcycles, ATVs and similar environments. Included mounting hardware and stylish grilles simplify installation and give a clean, custom look.