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Polk Audio MM1040

Mobile Monitor series 10" 4-ohm subwoofer

19 Reviews | 4 questions - 5 answers

Item # 107MM1040

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Our take on the Polk Audio MM1040

Polk Audio's Mobile Monitor Series subwoofers bring out superior performance from lighter materials, so you'll get the impact you want without the extra weight of a conventional system. Advanced engineering and optimized components reproduce your sound with uncompromising accuracy, for low end that is rich and clear.

Polk Audio's Mobile Monitor Series subwoofers bring out superior performance from lighter materials, so you'll get the impact you want without the extra weight of a conventional system. Advanced engineering and optimized components reproduce your sound with uncompromising accuracy, for low end that is rich and clear.

The MM1040 10" 4-ohm subwoofer handles up to 350 watts RMS. A copper voice coil and neodymium magnet motor drives the polymer cone with exceptional efficiency. The carbon composite basket features a "wagon wheel" design that resists flexing during heavy excursion, so your sub hits solidly without distorting.

This sub is certified for marine use, and Polk includes corrosion-resistant stainless steel mounting hardware.

Priced per speaker


Anonymous, Knoxville, TN

What's in the Box:

  • One 10" Single 4-ohm voice coil subwoofer
  • Foam gasket
  • 8 Mounting screws
  • 8 Speed-clips
  • Owner's Manual
  • Product Registration Information sheet

Product Highlights:

  • 10" 4-ohm subwoofer
  • polymer cone with butyl rubber surround
  • carbon composite basket
  • certified for marine use
  • optional matching grille complements the basket design
  • power range: 100-350 watts RMS
  • peak power handling: 700 watts
  • frequency response: 24-200 Hz
  • sensitivity: 91 dB
  • top-mount depth: 4-9/16"
  • sealed box volume: 0.66 cubic feet
  • ported box volume: 1.0 cubic feet
  • warranty: 1 year
  • Our 60-day money-back guarantee

Polk Audio MM1040 Reviews

Average Customer Review(s):

(19 Reviews)
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Hands-on research

Product Research

Enclosure Compatibility


Klippel Optimized: Using a state-of-the-art Klippel Distortion Analyzer, Polk engineers were able to optimize the woofer's motor structure, voice coil alignment and suspension for the best possible performance, even at extreme listening levels.

Polymer Woofer Cone with Butyl Rubber Surrounds: The Polymer Woofer Cones and Butyl Rubber Surrounds will not break down over time and will survive the rigors of harsh automotive environments.

High Temperature Copper Voice Coil (50mm) and Polyamide Former: High Temperature 50mm Copper Voice Coil and Polyamide Former withstand the most rigorous use while maintaining extremely low distortion for bass punch and output.

Carbon Composite Basket: The woofer's carbon composite basket is lightweight and will not flex during music audio peaks.

Nickel Plated Heavy Duty Input Terminals: Nickel plated heavy duty input spring-post terminals accommodate speaker wire up to 8 AWG or twisted pairs of 12 AWG.

Preconditioning Period: Mobile Monitor subwoofers will achieve even greater performance once they are thoroughly broken in. To break in your new MM subwoofer, play 20 to 30 hours of music at moderate levels.

Marine Certified Woofer: Polk MM Series woofers are built to withstand exposure to moisture and UV rays, so they work well in boats and cars. They also include stainless mounting hardware for corrosion and rust resistance.

Enclosure Compatibility

Recommended Sealed Box Volume: Polk recommends mounting this woofer in a sealed enclosure made out of 3/4" MDF with an internal volume of 0.66 cubic feet.

Recommended Ported Box Volume: Polk recommends a ported enclosure made out of 3/4" MDF with an ideal internal volume of 1.0 cubic feet using a slot port measuring 13.5" wide x 1" tall x 20" deep.

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Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Marine grade. [ Ron  Mar 24, 2017 ]
Good product and reviews. [ Daniel  Mar 21, 2017 ]
Had really good reviews [ Brandon  Feb 18, 2017 ]
I have been very happy with my past Polk Audio speakers. [ DAVID  Feb 02, 2017 ]
I have Polk speakers in my boat and the sound quality is exceptional. My stock subwoofer needed to be replaced, so I elected to stick with what I know to be good quality both in sound & product. [ Timothy  Jun 29, 2016 ]
I ordered the MTX thunderform dual subwoofer unloaded box and I ordered two of these to put in it. [ Willie  Jun 27, 2016 ]

4 questions already asked

I do not recommend connecting different subwoofer models (and definitely not different size woofers) to the same channel of amplification. The differences in power handling and frequency production between the models will prevent optimal performance from the subs and proper adjustment of the amplifier. [ Ryan  Mar 11, 2017 ]  Staff
I am thinking that would depend on whether or not you get the single or dual voicecoil version. And I would recommend getting the dual voice coil 2 ohm versions if your amp will support a 2 ohm load. If you get the single voice coil 4 ohm version like I did you cannot wire into a tandum 2 ohm stable load I tried this and it doe not work... And be prepared to buy lots of dynomat or other sound deadening material as these subs pound hard. [ matthew  Feb 27, 2017 ]
We do have some ported box options available for the Polk Audio MM1040. In order to figure out which is the best fit for you and your system, I would recommend contacting an Advisor directly by phone (1-800-324-9695) or online chat. They can go over all the available options in detail with you to ensure the best performance with your new subwoofer(s). [ Larry  Feb 21, 2017 ]  Staff
No free air. This subs performance will required the required .66 cubic foot enclosure [ Jose  Dec 30, 2016 ]
You can check to see if this will fit your vehicle by using our Outfit My Car tool: For additional details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  Apr 04, 2016 ]  Staff