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Polk Audio MM521 Open Box, Very Good Condition (Used)

5.25" 2-way Mobile Monitor Series Coaxial Speakers (Marine Certified) Open Box, Very Good Condition (Used)

Polk Audio
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• Open Box Complete
• Peak Power: 200W
• RMS Power: 90W
• 2-way Marine Certified Coaxial Speakers
• Woven glass composite cone woofer
• Butyl rubber surround for a smoother response
• 1" Silk/Polymer composite swivel tweeter
• Klippel optimized components for distortion-free sound

Learn more about the ls-mm521-obc6

We apologize

This item has been discontinued

NVX - Worth the Envy - Direct to Consumer Car Audio

Description


Polk Audio brand icon

Authorized dealer

Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.

Will fit most 6x9" and 5x7"/6x8" locations,
with appropriate speaker adapter. Click "Related Items" Tab.

MM Series Superior Performance

The Mobile Monitor Series by Polk Audio is the result of 3 years of research and development. The series uses high quality materials and the newest loudspeaker technology to bring the listener an unforgettable experience. The best part about the MM Series is the affordable price.

  • A part that is fully functional but shows no sign of use outside of installation.

General Features

  • 5-1/4" 2-way MM Series Marine Certified Coaxial Speakers
  • Power Handling:
    • Peak: 400 watts per pair / 200 watts each
    • RMS: 180 watts per pair / 90 watts each
  • Woven glass composite cone woofer
  • Butyl rubber surround for a smoother response
  • 1" Silk/Polymer composite swivel tweeter
  • Klippel optimized components for distortion-free sound
  • 2.7 ohm impedance
  • 25mm Large diameter voice coil increase reliability
  • Carbon composite basket
  • Neodymium magnet structure for more power
  • Top-mount depth: 2-1/2"
  • Authorized Internet Dealer
  • 90 Day Manufacturer's Warranty

Priced Per Pair

Important Note: Polk Audio specifies the nominal impedance of these speakers to be 2.7 ohm. The product box states the impedance to be 4 ohm and the speaker magnet shows 2 ohm, this has been confirmed by Polk Audio to be an incorrect specification. The product manual is correct in stating the nominal impedance of the MM series of speakers to be 2.7 ohm.

Specifications & Details


Speaker Specifications
Series
Polk MM Series
Priced Per
Pair
Speaker Size
5-1/4"
Design
2-way Coaxial
Tweeter Design
Dome
Tweeter Composition
Silk-Polymer Composite
Woofer Composition
Woven Glass Fiber
Woofer Surround
Butyl Rubber
Peak Power Handling
200 watts
RMS Power Handling
90 watts
Sensitivity
92 dB
Frequency Response
50 - 25000 Hz
Impedance (Per Voice Coil)
2.7
Top-Mount Depth (Mounting Depth)
2-1/2"
Cutout Dimensions
4-11/16 x 4-11/16 
General specifications
Speaker Grilles
Yes
Warranty and Return Policy
Parts Warranty Duration
90 days
Labor Warranty Duration
90 days
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

MM521 Open Box Complete-2

Weight:

4.00lbs

Internal SKU:

ls-mm521-obc6

Internal Product ID:

130961

Customer Ratings & Reviews


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