DB Plus Series

Upgrade your Car, Boat, Motorcycle, or ATV’s factory speaker set with Polk's loud, crystal clear sound and effortless bass. Offering multiple configurations and sizes, DB Plus are easy to install with a drop-in fit. Marine certified and built to last, you can take that legendary Polk sound wherever life takes you.

Factory Audio Upgrade

Marine Certification

Universal Drop-in Fit

Multiple Configurations

50 Year Heritage

Engineered in Baltimore

12 Products

Filter Products

DB522

5.25" Coaxial Speakers with Marine Certification

$100 / pair

DB402

4" Coaxial Speakers with Marine Certification

$90 / pair

DB6502

6.5" Component Speaker System with Marine Certification

$200

DB462

4x6" Coaxial Speakers with Marine Certification

$90 / pair

DB5252

5.25" Component Speaker System with Marine Certification

$200

DB692

6x9" Coaxial Speakers with Marine Certification

$140 / pair

DB1242 DVC

12" Dual Voice-Coil Subwoofer with Marine Certification

$130

DB1242 SVC

12" Subwoofer with Marine Certification

$130

DB652

6.5" Coaxial Speakers with Marine Certification

$110 / pair

DB1042 SVC

10" Subwoofer with Marine Certification

$110

DB842 DVC

8" Dual Voice-Coil Subwoofer with Marine Certification

$100

DB842 SVC

8" Subwoofer with Marine Certification

$100

Marine certification

DB Plus speakers and subwoofers are IP56 rated to be dirt- and water-resistant and also tested against salt-fog, UV and humidity to ensure that they're fully protected against the elements.

Learn more about Built-in