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



Available Finishes:
Additional Images

There are no downloads available. If you need assistance, please contact us.

American Power, Italian Finesse

The Polk Audio/MOMO High Performance Tweeter is a masterpiece of miniature engineering and design. It brings stunning detail and beautiful highs to the MM Series Component Systems. And its precision German-manufactured red silk-composite "Mueller" dome does it without "biting."

  • Polk/MOMO is built tough and backed by a three year Parts and Labor warranty, the best warranty in the car speaker world.
  • It features a 1" aluminum ULV fluid-cooled voice coil and small-but-powerful neodymium magnet for high power handling and superior detail.
  • You can swivel mount it, too, for pinpoint imaging.
  • It's the perfect complement to the Polk Audio/MOMO line of High Performance car audio components.
  • For more information on Polk/MOMO components visit Polk/

Driver Complement

Diameter1" (2.54cm) 
TypeSilk Composite Dome -ULV - fluid cooled neodymium magnets 


Total Frequency Response4.4khz-20khz 
Nominal Impedance4 ohms
Efficiency90 dB
Power Handling
Continuous25 watts
Peak100 watts
Voice Coil
Tweeter Diameter1" (2.54cm) 
Magnet Weight5.00 pounds
Recommended Amplifier Power25-100 watts per channel


Tweeter Cut-Out Diameter2 1/16" (5.24cm) 
Tweeter Mounting Depth
Flush Mount Depth7/8" (2.22cm) 
Surface Mount Height1" (2.54cm) 


Speaker WarrantyLimited, 3 Year 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.

MM400 Media

MM400 Literature

Want to know more? Want to dig just a little deeper to learn about this product? Here's a list of source material that will give more detail, other perspectives, and answer questions you may have.

Series Catalogs

MM400 Accessories