Car Subwoofers

This product is a vintage Polk model and is not available for sale, but it may still be available in some stores as a closeout or used product. The following text is taken from the original sales brochure for this product and does not reflect current availability. If you happen to have any question or concerns about this product, or any other Polk Audio product, feel free to contact our Customer Service Department at 1-800-377-7655 Monday - Friday, 9am - 5:30pm EST


High Performance Custom Enclosed 12

Available Finishes:
Additional Images

Championship Performance

Polk Audio/MOMO High Performance Car Audio Speakers are engineered by Polk Audio with ultra high-tech materials for competition-level performance and durability. They're styled exclusively by MOMO, the world's preeminent designer of racing accessories, to look as good as they sound. And for motor sports enthusiasts the world over, a MOMO product is a charismatic symbol of the finest quality.

When you consider your car an extension of your personality, Polk Audio/MOMO High Performance Car Audio is the perfect synthesis of technology and design.

The second-generation Polk/MOMO subwoofers are the most advanced and highest performing subwoofer drivers Polk has ever offered. They set a new performance standard for their class.

  • Easy to install, just hook it up and secure it in your trunk!
  • Perfectly optimized for best possible bass response from the pre-installed high performance Polk/MOMO Subwoofer.
  • Available in two sizes: 10" (MM10) and 12" (MM12).
  • Heavy Duty Enclosure, custom engineered of non-resonant 1" (25mm) MDF.
  • 1/2" (12mm) -Thick curved, flame polished Plexiglas shows off the Polk/MOMO Subwoofer with show-car pride.
  • 26 Allen Screws and an airtight gasket system secure the plexi to the cabinet to ensure strength, rigidity and flat out cool cosmetics.
  • Enclosure finished in durable high-gloss enamel.
  • Enclosure interior padded with 1/2"-thick Anti-resonance Closed Cell Foam.
  • 14-gauge interior wire connections for efficient power transfer.

Driver Complement

Diameter12" (30.48cm) 
TypeAluminum-clad Injection-molded Polymer cone with cast basket 


Total Frequency Response20Hz - 200Hz 
Nominal Impedance4 ohms
Efficiency87 dB
Power Handling
Continuous500 watts
Peak1000 watts
Voice Coil
Driver Diameter2" (5.08cm) 


Product Weight (each)34.00 pounds


Total Shipping Weight39.00 pounds

Subwoofer Box Dimensions

Height14 5/8" (37.15cm) 
Width14 5/8" (37.15cm) 
Depth11 5/16" (28.73cm) 
Footprint Depth11 5/16" (28.73cm) 
Footprint Width14 5/8" (37.15cm) 
Internal Box Volume0.88 


Speaker Warranty3 years parts and labor 

Specifications, dimensions and features subject to change without notice. For more information call us at 1-800-377-7655 (USA and Canada). Outside of North America call +1 (410) 358-3600.

MM12 Media

MM12 Literature

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Series Catalogs

MM12 Accessories