Polk Audio MM691 with Cage/Pole Mount Speaker Pods

Polk Audio MM691 Marine Certified 6"x9" 3-Way Mobile Monitor MM Series Coaxial Speakers + Two Froghead USPOD1 Universal 6"x9"-Speaker Pods

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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.

Polk Audio MM691

6x9" 3-Way Mobile Monitor MM Series Coaxial Speakers (Marine Certified)
Quantity: 1

General Features

  • 6" x 9" Mobile Monitor MM Series 3-way Marine Certified Speakers
  • Power Handling:
    • Peak: 600 watts per pair / 300 watts each
    • RMS: 250 watts per pair / 125 watts each
  • Recommended power range: 15 - 125 watts RMS per channel
  • Woven glass composite cone woofer
  • Butyl rubber surround
  • 1" Silk composite dome tweeter
  • 3/4" Super tweeter
  • 2.7 ohms impedance
  • Klippel distortion analyzer
  • 1-1/4" (30mm) Large diameter voice coil
  • Neodymium magnet structure
  • Top-mount depth: 3-3/16"
  • Grille Included
  • 1-year SonicElectronix.com warranty

Priced Per Pair

Important Note: Polk Audio specifies the nominal impedance of these speakers to be 2.7 ohms. The product box states the impedance to be 4 ohms and the speaker magnet shows 2 ohms, 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 ohms.

Froghead USPOD1

Two Universal Speaker Pods for 6" x 9" speaker
Quantity: 2

General Features:

  • Empty enclosure for aftermarket speakers
  • Made in the USA from High Quality HDPE Plastic
  • Each Pod will accommodate a single 6x9
  • 2 powder coated mounting brackets included - up to 2" tubing
  • Opening(s) must be made by user, please plan accordingly
  • Dimensions: 8"W x 4.3"D x 16"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
    • Important: If unit has been modified, please contact manufacturer for warranty options.


Second Depth
The second depth is used only when the box is slanted or angled. This value is the top measurement and it is measured in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
The height of the item, measured from top to bottom, in inches.
The width of the item from left to right (side-to-side) measured in inches.
Color of handle.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Polk Audio MM691 with Cage/Pole Mount Speaker Pods

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Polk Audio MM691 with Cage/Pole Mount Speaker Pods

Polk Audio MM691 Marine Certified 6"x9" 3-Way Mobile Monitor MM Series Coaxial Speakers + Two Froghead USPOD1 Universal 6"x9"-Speaker Pods


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