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



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Championship Performance

Polk/MOMO Championship 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.

You'll say, Whoa, that's a cool speaker when you hear the new MM6 6.5" 2-way component system. Housed in a show off cast aluminum basket, it features a poly/mica composite cone, airtight Butyl rubber surround and flat Conex spider for more than torture-proof durability; you'll hear rock solid mid-bass response and lifelike midrange detail, all pouring forth through the unique "billet-style" open grille. And the highs...clean, clear and uterly free of harshness and distortion. Polk/MOMO is built tough and backed by a powerful three year Parts and Labor warranty.


  • Design patented, “show-qualityâ€? Cast Aluminum Basket & open-design cast aluminum Grille for the clearest midrange performance.
  • Built tough and backed by a three-year Parts and Labor warranty.
  • Polypropylene Cone benefits from Polk's exclusive Dynamic Balance technology to minimize cone break-up and resonance for wider response and lower distortion. Polk/MOMO delivers the clearest, most detailed midrange performance of any speaker in its class.
  • Low mass Carbon Fiber dustcap delivers smoother upper-midrange response for the ultimate in vocal accuracy and clarity.
  • Airtight Butyl Rubber Surround and strong Conex spider for torture-proof durability and solid mid-bass response with lifelike midrange detail.
  • Flat Spider for extended linear motion.
  • Vented Pole Piece for cool high power handling.
  • 1.5" Voice Coil for better low frequency response and an “up frontâ€? bass image.


  • 1 inch Silk Dome Tweeter for highs that are detailed, clean and extended - “bright without bite.â€?
  • Tweeter features small-but-powerful neodymium magnet for ultra-high efficiency in a tiny package that will fit just about anywhere.
  • Fluid cooled for high power handling. Tweeter comes with durable rustproof hardware and 2 swivel mounting cups (surface mount and flush mount) for installation flexibility and pinpoint imaging.


  • New Crossover Design, with 3-position Tweeter Level Adjustment (0dB, -3dB and -6dB)
  • Midrange Extension switch bypasses the driver's low-pass filter for installations where the driver and tweeter are physically separated.
  • Crossover features Mylar Capacitor/Air-Core Inductor components, for better dynamic impact and transparency
  • Pro-Grade Gold-Plated Crossover Terminals for the most secure high-performance wire connections.
  • Vented Crossover housing allows heat-generating crossover components to stay cool for greater reliability-and it looks real cool too!

Driver Complement

Diameter1" (2.54cm) 
TypeSilk dome with neodymium magnet 
Mid / Woofer
Diameter6 3/4" (17.14cm) 
TypeCast aluminum baskets with polymer/mica composite cones 


Upper -3dB Limit20 kHz
Lower -3dB Limit50  Hz
Nominal Impedance4 ohms
Efficiency87 dB
Power Handling
Continuous150 watts
Peak250 watts
Switch Position A0dB, -3dB, -6dB tweeter level switch 
Switch Position Blow pass filter bypass allows driver to run full-range 
Voice Coil
Driver Diameter1 1/2" (3.81cm) 
Tweeter Diameter1" (2.54cm) 
Magnet Weight14.40 pounds
Recommended Amplifier Power25 -150 watts per channel

Thiele / Small Parameters

Resonant Frequency50 Hz
Xmax Linear3.2 mm / .126 in 
Xmax Mechanical15.2 mm / .600 in 
Winding Width12.4 mm / .488 in 
LE.313 mH
SD145 sq cm / 22.48 sq in 
VAS14.61 L / .515 cu ft 
Driver Weight4 Pounds pounds


Cut-Out Diameter5 13/16" (14.76cm) 
Tweeter Cut-Out Diameter2 3/16" (5.56cm) 
Height15/16" (2.38cm) 
Diameter7 1/4" (18.41cm) 
Driver Mounting Depth
Top Mount2 13/16" (7.14cm) 
Bottom Mount3 1/16" (7.78cm) 
Product Weight (each)4.00 pounds


Total Shipping Weight13.00 pounds


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.

MM6 Media

MM6 Literature

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Series Catalogs

MM6 Accessories