Price Match Guarantee Polk Audio DB462 DB+ Series 4x6" Coaxial Speakers with Marine Certification Polk Audio DB462 4" x 6" 2-Way Coaxial Speaker for Car & Marine The Polk Audio DB402 2-Way Speaker features a 4" x 6" polypropylene woofer cone and a 3/4" silk dome tweeter with a built-in crossover, that delivers smooth and precise sound. The speakers' Dynamic Balance technology uses laser imaging to reduce resonance, resulting in a wide response and low distortion. This DB+ Series speaker is versa