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Polk Audio MM842DVC 8" Subwoofer

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  • Polk Audio MM842DVC 8" Subwoofer
  • Polk Audio MM842DVC 8" Subwoofer
  • Polk Audio MM842DVC 8" Subwoofer

List Price: $299.00 On Sale: $228.85 (GST Included) (You save 23.46%)



$9.95 Flat Rate Generally ships out in 24 to 48 hours.

Product Info

Product Info

Check out the Polk Audio MM842DVC 8" Ultra-Marine Subwoofer's Key Features
(Polk MM842DVC)

  • 12 Month Polk Audio Australian Warranty
  • Peace of Mind Purchase Guarantee (bottom of page)
  • MM1 Series 8" Dual Voice Coil Subwoofer
  • Ultra-Marine certified with IP56 rating
  • Advanced High Performance Bass
  • Dynamic Balance technology
  • High excursion bump stack motor structure provides more audible throw
  • 300 watts continuous power handling
  • 900 watts peak power


The Polk Audio MM842DVC is a premium upgrade tuned for the total sonic accuracy found in a studio subwoofer. This 8-inch, dual voice coil MM1 Series subwoofer was meticulously conceived, designed and engineered for advanced high performance bass. It is dirt- and water-resistant and is salt-fog and UV tested, making it perfect for marine use.

MM1 is the next generation of our highly-acclaimed Mobile Monitor series—conceived, designed and engineered to deliver premium audio with thunderous bass, enhanced sonic detail and ultra-durable construction. It’s the one crafted for full-on powerful sound, no matter what vehicle you’re in. Hear rich high-fidelity wherever you go with our Dynamic Balance technology, and enjoy more audible throw, increased power handling and minimized air chuffing—all housed in an IP56 rated enclosure that’s Ultra-Marine Certified.


Premium Upgrade
Tuned for the total sonic accuracy you get in a studio subwoofer, the MM1 Series reconfigures this kind of high-quality deep bass impact for an on-the-go listening experience that totally outperforms your OEM factory setup.

Advanced High Performance Bass
Every element of the MM1 Series is meticulously engineered for thunderous bass, enhanced sonic detail and ultra-durable construction—Dynamic Balance technology, a high excursion bump stack motor structure, glass fiber formers, multilayered and oversized voice coils, high-temp Conex spiders, a vented pole and basket structure, and integrated fuses.

Dynamic Balance Technology
Enjoy a rich, clean, full-range sound with our patented Dynamic Balance technology engineered into every MM1 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 clean, core-pounding lows no matter what you’re listening to.

High Excursion Bump Stack Motor
Enjoy more audible throw for a deep bass experience that’s bound to excite your senses.

Multilayered Voice Coil
Provides increased motor strength for tighter, more accurate sound.

Glass Fiber Formers, Oversized Voice Coils and High Temperature Conex Spiders
All three combine to create a high efficiency driver, for clean, clear bass, increased power handling, better linearity, lower distortion and greater durability.

Vented Pole and Basket Structure
Offers increased cooling, power handling—and minimized air chuffing.

Integrated Fuses
Protects the subwoofer against overpowered amplifiers.

Ultra-Marine Certified
Featuring an IP56 rating that’s dirt- and water-resistant it includes a non-corrosive fiberglass reinforced ABS basket, a water-proof surround, weep holes for proper drainage and a composite cone for extra, long-lasting protection against the elements—all of it salt-fog and UV tested.

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.

Non-corrosive Fiberglass Reinforced Baskets
Offers heavy-duty protection for back half of the speaker, which helps prevent corrosion and general wear and tear.

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
Driver Enclosure Type Ultra-Marine Certified
Driver Complement (1)  0" (0 cm) d (Round) - Subwoofer
Shape Round
Diameter 7.28" (18.49 cm)
Full-Range Mounting Depth - Top Mount 4.13" (10.49 cm)
Full-Range Mounting Depth - Bottom Mount 4.69" (11.91 cm)
Total Frequency Response 30 Hz → 200 kHz
Sensitivity (1 watt @ 1 meter) 85 dB
Continuous Power Handling 300
Peak Power Handling 900
In The Box

What's Included?

  • 1 x Polk Audio MM842DVC 8" Subwoofer
  • 1 x Stainless Steel Mounting Hardware

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