POLK AUDIO MM842SVC MM1 8" MARINE SUBWOOFER SVC 4-OHM CAR BOAT SUB

Brand New Polk Audio MM842SVC
900 Watt 8" MM1 Series Single 4-Ohm Car Subwoofer COMES WITH 3 YEAR WARRANTY
Advanced materials and engineering
Polk Audio rethinks their legendary Mobile Monitor Series subs. Their MM1 Series subwoofers offer superior performance from lighter materials, so you'll get the impact you want without the extra weight of a conventional sub. They use advanced engineering and optimized components to reproduce your sound with uncompromising accuracy, and Polk built these marine-certified subs to take some serious abuse.
Efficient power handling
The MM 842 SVC 8" 4-ohm subwoofer handles up to 300 watts RMS, with a titanium-coated polymer cone that'll stand the test of time. The fiberglass-reinforced ABS basket resists flexing during heavy excursion, so your sub hits hard without distorting. The sub's inner workings are designed to handle the stress of heavy bass, so go ahead and turn it up.
Ultra Marine-certified
This sub has earned Advanced Ultra-Marine certification and an IP56 rating, which means it'll deliver powerful bass in some challenging conditions. The composite cone, waterproof surrounds, stainless steel mounting hardware, and ABS basket all resist corrosion, and the sub even features weep holes for proper drainage.
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.
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.
General Features:

8" 4-ohm Single-Voice Coil MM1 Series Subwoofer

Ultra-Marine Certified, perfect for cars, ATVs or on-the-water applications

Power Handling:

Peak: 900 watts

RMS: 300 watts

Composite Cone, stands up to water, dirt, salt and UV

Santoprene Surround

Vented pole and basket increases cooling and power handling

Ultra-Marine IP56 Certified with water-proof surround and weep-holes to move water away from your bass

Fiberglass-reinforced ABS basket

Spring-loaded binding post terminals

Oversized single voice coil

Top-mount depth: 4"

Cutout diameter: 7.2"

Frequency Response: 30 - 200Hz

Sensitivity: 85dB

Sold Individually

What's in the box:

One 8" subwoofer

1 Foam gasket

Eight 1-3/8" Allen head stainless steel screws

Four 5-amp ATO fuses (two installed/ two extra)

Wiring diagram/ Specification sheet (English/ French/ Spanish/ German/ Italian)

Fuse note (English/ French/ Spanish/ German/ Italian)

Online registration information

Polk Audio MM 842 SVC owner's manual

Brand New 3 Year Warranty
As always shipping is free! California residents please add 7.75% sales tax. We can only ship to the Continental US. We will not ship to international destinations- no exceptions. We have very prompt shipping!
Comes with 3 year StereoNeeds warranty. For any warranty issues please contact us.

Our company has been in the stereo business for over 20 years

We have sold on EBAY since 2000, so please bid with confidence.

We have a 99% positive feedback rating on EBAY!

We have very prompt shipping.

We will gladly answer any technical questions you have.

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Returns Accepted for this item if it's within 60 Days