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
14 Products
14 Products
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  • 6x9" Coaxial Speakers with Marine Certification (Pair)
    C$ 200.00
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    12" Subwoofer with Marine Certification
    C$ 169.00
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    8" Dual Voice-Coil Subwoofer with Marine Certification
    C$ 149.00
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    5.25" Coaxial Speakers with Marine Certification (Pair)
    C$ 129.00
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    6.5" Component Speaker System with Marine Certification (Pair)
    C$ 269.00
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    5.25" Component Speaker System with Marine Certification (Pair)
    C$ 249.00
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    12" Dual Voice-Coil Subwoofer with Marine Certification
    C$ 169.00
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    5x7" Coaxial Speakers with Marine Certification (Pair)
    C$ 149.00
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    8" Subwoofer with Marine Certification
    C$ 149.00
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    10" Subwoofer with Marine Certification
    C$ 149.00
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    4x6" Coaxial Speakers with Marine Certification (Pair)
    C$ 129.00
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    6.5" Coaxial Speakers with Marine Certification (Pair)
    C$ 149.00
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    10" Dual Voice-Coil Subwoofer with Marine Certification
    C$ 149.00
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    4" Coaxial Speakers with Marine Certification (Pair)
    C$ 129.00
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    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.

    30 days risk-free

    Try any product for 30 days and if you don’t love it, return it for a full refund. We’ll even pay for shipping.

    Free Shipping

    Free and fast shipping on all products, direct from Polk.

    50 Year Legacy

    For over 50 years we've been providing exceptional sound experiences.

    Engineered in Baltimore

    We're proud to be part of Baltimore for over five decades.