Defender Home Page
Phone: 800-628-8225 Fax: 800-654-1616 Int'l.: 860-701-3400 Email: Contact Us
Follow us on Facebook
Shipping Info
Defender Home Page
Your Cart
null View Cart View Shopping Cart
null Check My Order(s)
null Track My Package(s)
Conversion Chart
Shopping Areas
Boats & Motors
null Defender Seal null
promo A
promo B
promo C
promo D

Poly-Planar MS-55 Marine Compact Box Subwoofer

  • Power: 100 Watts RMS, Frequency Range: 40 - 300 Hz
  • Overall Dimensions: 8-5/8" x 11-1/2" x 4-13/16"
  • Mount: Surface, Waterproof Design, Color: Gray, Sold Individually
  • Item #: 
    Model #: 


    Shipping Weight: 
    7.75 Lbs.
    List Price: 
    Reg. Price:
    Sale Price:
    Note:  This item ships from the manufacturer.
    It typically ships within 2 business days  (more...)
    Status:   null Ships Direct

    Quantity : 


    Poly-Planar MS55 Compact Box Subwoofer


    • Compact, high-efficiency bass enclosure optimized for marine applications
    • Compact size and molded-in mounts allow for convenient installation nearly anywhere
    • Self-contained bass unit requires no cutting of panels or holes in boat interior
    • Computer-optimized acoustic design
    • Dual voice coil, high-excursion woofer produces solid, deep bass – the perfect addition to any onboard audio system
    • High-density UV-stable enclosure
    • Side-vented output ports
    • Waterproof design for marine use
    • Rubber isolation feet for vibration-free mounting
    • Acoustically matched to Poly-Planar ME-51, MZ-60 and ME-400D amplifiers
    • Sold individually (1 per box)


    • Poly-Planar Part No. MS55
    • Speaker Type: Dual voice coil high-excursion subwoofer
    • Mount: Surface
    • Color: Gray
    • Frequency Response: 40 Hz to 300 Hz
    • Speaker Impedance: 4 Ohm x (2) inputs
    • Power Handling: 100 Watts RMS
    • Overall Dimensions: 8-5/8" x 11-1/2" x 4-13/16"

    For further details see Owner's Manual with Installation Instructions for this product



    Have A Suggestion?

    Help us make our site better for everyone! Let us know you've found something wrong or frustrating on this page and we will improve it. Please mark each that apply.

    Product has been improperly categorized
    Page loads too slowly
    Product information is incorrect
    Page has errors or bugs
    Site is frustrating or difficult to use
    Product image is missing or wrong
    Cannot find my size
    Spelling errors on page
    Not enough product information

    Comments or Examples:
    Examples: Missing information such as dimensions and model number, typos, inaccuracies, etc...

    Please include your e-mail address below if you would like us to respond to your comments or questions.             

    Join Our Email List And Receive our Monthly Promotions
    Defender Email Specials
    Click Here For Our Privacy Policy