Polk Audio DB402 DB+ Series 4 Inch Speakers Car Audio with Marine Certification

The Polk Audio DB402 4″ 2-Way model for marine and vehicle use, feature a polypropylene woofer cone and a 3/4″ silk dome tweeter with a built-in crossover; delivering smooth, precise sound. Dynamic Balance technology uses laser imaging to reduce resonance, producing a wide response with low distortion. The DB+ Series marine speakers are versatile, offering 4/2-hole compatibility and mounting hardware. The bold grille design adds style to any dashboard, appealing to drivers planning road trips and to the car audio enthusiast. The car and marine coaxial speakers, certified by Polk Audio, undergo rigorous tests for sun, moisture, and extreme temperature shifts; so they perform reliably on your vessel without altering performance. Polk Audio’s DB+ Series subwoofers complement the set, delivering smooth, powerful bass, letting you upgrade your car stereo without breaking the bank while enjoying best-in-class sound across vehicles and watercraft alike.
EXCEPTIONAL SPEAKER FOR CAR & MARINE – The Polk DB402 2-Way Coaxial Marine Certified car speakers with 135W peak power, 4-ohm impedance, 4″ polypropylene woofer cone, and a strong rubber surround are built to reproduce high-quality music
ELEVATE YOUR CAR AUDIO SYSTEM – With a built-in crossover, the music speaker directs highs & lows to the respective drivers; it handles up to 45W RMS & boasts 60-22kHz range to reproduce high-quality sound
RESONANCE-FREE SOUND CREATION – With Dynamic Balance proprietary technology, these marine/boat speakers use laser imaging to identify the best mix of materials and ensures a distortion-free response with wide dispersion
SPLASH-PROOF SOUND – Polk DB+ series speakers give thunderous sonic output in freshwater boats, motorcycles, and more; they have IP56 marine certification with coated steel baskets. They are even tested for Salt-fog, UV, and Humidity
EASY TO INSTALL – Polk door speakers include mounting hardware and stylish grilles that enable easy installation and add flair to any vehicle interior; an ideal choice for custom installations