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Polk Audio DB842DVC 8" 250W RMS Subwoofer

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  • Polk Audio DB842DVC 8" 250W RMS Marine Subwoofer
  • Polk Audio DB842DVC 8" 250W RMS Marine Subwoofer
  • Polk Audio DB842DVC 8" 250W RMS Marine Subwoofer

List Price: $149.00 On Sale: $129.85 (GST Included) (You save 12.85%)



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Product Info

Product Info

Check out the Polk Audio DB842DVC 8" Marine Subwoofer's Key Features
(Polk DB842DVC)

  • 12 Month Polk Audio Australian Warranty
  • Peace of Mind Purchase Guarantee (bottom of page)
  • DB+ Series 8" Dual Voice Coil Subwoofer
  • Marine certified with IP56 rating
  • Space-saving design
  • Dynamic Balance technology
  • 250 watts continuous power handling
  • 750 watts peak power


The Polk Audio DB842DVC is an 8-inch, dual voice coil subwoofer that delivers rich, deep bass in nearly any vehicle for whenever you’re on the on the go. It is water- and dirt- resistant and was tested for salt-fog, UV and humidity, making it perfect for marine use.

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.


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.

Polk Audio - The Brand

Since the founding of Polk in 1972, it’s been Polk's mission to craft high quality, great sounding speakers that are accessible to everyone. For the people of Polk, designing and building authentic audio solutions is their true passion.

Today, Polk remains an American success story. Polk is still proudly based in Baltimore, right where they started. Their engineers and designers now hold more than 65 patents for pioneering advances in audio design and technology. These innovations have influenced the audio industry many times over.

Peace of Mind Purchase Guarantee & Declaration of Warranty
This product is supplied directly via Polk Audio Australia and enjoys the FULL benefits of the 'POLK AUDIO - 12 MONTH AUSTRALIAN WARRANTY'. (You may also be entitled to other consumer warranties as provided by the Australian Consumer Guarantee and these entitlements are not limited by this warranty). Should this product fail, you have the option of contacting the manufacturer / supplier directly.

We are a FULLY AUTHORISED Australian retailer for Polk Audio Australia.

This product will be shipped from our Sydney Warehouse. This product is NOT DROP SHIPPED from overseas.

Tech Specs

Technical Specifications

Qty Included 1
Subwoofer Array Driver Enclosure Type Marine Certified
Subwoofer Array Driver Complement (1)  8" (20.32 cm) d (Round) - Subwoofer
Shape Round
Diameter 7.28" (18.49 cm)
Full-Range Mounting Depth - Top Mount 3.82" (9.7 cm)
Full-Range Mounting Depth - Bottom Mount 4.02" (10.21 cm)
Total Frequency Response 30 Hz → 250 kHz
Sensitivity (1 watt @ 1 meter) 84 dB
Continuous Power Handling 250W
Peak Power Handling 750W
In The Box

What's Included?

  • 1 x Polk Audio DB842DVC 8" Subwoofer
  • 1 x Stainless Steel Mounting Hardware

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