Polk Audio DB402 DB Plus Series 4" Coaxial Speakers with Marine Certification 45W RMS

Upgrade your Car, Boat, Motorcycle, or ATV’s factory speaker set with the DB+ Series to get that legendary Polk sound wherever life takes you. You’ll get loud, crystal clear sound with effortless bass from a marine certified speaker that’s easy to install and built to last.

• Marine certified (IP56 rated)
• Dirt & water-resistant & tested for salt-fog, UV & humidity
• Used in Automobile, Boats & ATVs
• 4" Dynamic Balance® polypropylene woofers
• 0.75" tweeters
• Universal "drop-in" fit with zero tweeter protrusion

Fit For Any Ride™
Car audio enthusiasts love Polk’s DB+ Series for the rich, clean, full-range sound they provide automobiles, motorcycles, boats, and ATVs. Built marine tough and designed for a universal fit, DB+ series power the soundtrack of your ride wherever life takes you, on the road, the trail, the waves—you name it.


Marine Certified
The DB+ Series is IP56 rated so they are dirt- and water-resistant. They also have been tested for salt-fog, UV and humidity. A big part of that marine certification also means that each speaker has a non-corrosive plastic grille, a polypropylene UV tolerant cone, waterproof inner and outer surrounds, and stainless steel mounting hardware, ensuring that they are fully protected against the elements.


Designed To Go The Extra Mile
All Polk loudspeakers rely on our patented process to eliminate electro-acoustic and mechanical issues before they become a part of the finished speaker and are also rigorously tested through Polk’s Klippel distortion analyzers. DB+ Series, in addition to their IP56 waterproof rating and Marine Certification feature waterproof surrounds that completely block dirt, liquid, and grime from entering the speaker housing—all designed to maximize longevity of the speaker.

Specifications

Type : 4" Coaxial

Peak Power Handling : 135W

Continuous Power Handling : 45W

Frequency Response : 60Hz - 22kHz

Sensitivity : 90dB