Polk Audio DB1242SVC

DB+ Series 12″ Single Voice Coil Subwoofer with Marine Certification

  • Delivers rich, deep bass in nearly any vehicle for whenever you’re on the on the go
  • Space-saving design reduces the need for oversized subwoofer enclosures
  • Dynamic Balance technology provides rich, clean, full-range sound by eliminating distortion and unwanted resonant frequencies
  • Marine certified with IP56 rating (water- and dirt-resistant) and tested for salt-fog, UV and humidity

Rich, Deep Bass

Delivers thunderous sonic output and powerful low frequency response wherever you go.

Space-Saving Design

Slimmed down form factor reduces the need for oversized subwoofer enclosures for a look that goes virtually unnoticed—but a sound that doesn’t. Fits in any enclosure or application.

Dynamic Balance Technology

Enjoy a rich, clean, full-range sound with our patented Dynamic Balance technology engineered into every DB+ speaker. Rigorously tested and developed by our talented Polk Audio engineers, whose passion rests in the principles of great sound, Dynamic Balance technology features non-resonant materials so you get extremely clear highs, mids and lows no matter what you’re listening to.

Marine Certified

The DB+ Series is IP56 rated so it’s dirt- and water-resistant. It also has 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 it’s fully protected against the elements.

Polypropylene UV Tolerant Cone

Enjoy the peace of mind knowing each speaker cone is built to last, whose clean and polished look won’t discolor or degrade over time while giving heavy low frequency sound the high-performance it deserves.

Waterproof Santoprene Surround

This attractive high performance material maximizes throw with its ultra-flexible, ultra-durable properties—and prevents the elements from entering the speaker unit. Plus, it combats the harsh effects of boat cleaning agents.

DB+ Series

Everything you love about Polk’s Dynamic Balance technology—that rich, clean, full-range sound—is built into the marine-tough, yet ruggedly sophisticated, DB+ series. And with its universal fit, it can be installed in any vehicle: Automobiles, motorcycles, boats, ATVs—you name it.


  • Total Pieces


  • Included Accessories
    • (1) Stainless Steel Mounting Hardware


  • Drivers Warranty
    1 years
  • Original Purchaser Only


  • Carton 1


  • Qty Included
  • Subwoofer Array Driver Enclosure Type
    Marine Certified
  • Subwoofer Array Driver Complement
    • (1)  10″ (25.4 cm) d (Round) – Subwoofer


  • Shape
  • Diameter
    9.05″ (22.99 cm)
  • Full-Range Mounting Depth – Top Mount
    4.33″ (11 cm)
  • Full-Range Mounting Depth – Bottom Mount
    4.57″ (11.61 cm)


  • Total Frequency Response
    28 Hz → 200 Hz
  • Nominal Impedance
    |||| ohms
  • Sensitivity (1 watt @ 1 meter)
    85 dB


  • Continuous Power Handling
  • Peak Power Handling
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