Why Shop Sonic Free Shipping Free Tech Support Easy Returns Low Price Guarantee Details
Print

Polk Audio MM651UM

6-1/2" 2-way Ultra Marine Mobile Monitor MM Series Speakers

4.5

(16 reviews)

Read 16 reviews

Write a review

Will this fit my car?

Select Vehicle >

Specials with this product

  • Free Ground Shipping to the 48 statesdetails
  • 6-1/2" Ultra Marine Mobile Monitor MM Series 2-Way Marine Speakers
  • Power Handling:
    • Peak: 400 watts per pair / 200 watts each
    • RMS: 200 watts per pair / 100 watts each
  • Woven glass composite cone woofer
  • Butyl rubber surround
  • 1" Soft dome weather resistant dynamic balance tweeter
  • Completely sealed speakers for marine use
  • Built-on grille
  • Sealed crossover assembly is built into the back of the magnet
  • Klippel distortion analyzer
  • 4 ohms impedance
  • 1-3/8" (30mm) Large diameter voice coil
  • Neodymium magnet structure
  • Stainless steel heavy duty input terminals and mounting hardware
  • Salt, fog and UV Resistant
  • Top-mount depth: 2-5/8"
  • 1-year SonicElectronix.com warranty

Priced Per Pair

Speaker Specifications
Speaker Size6-1/2"
Design2-way
Tweeter DesignSoft Dome
Tweeter CompositionSilk-Polymer Composite
Woofer CompositionWoven Glass Fiber
Woofer SurroundButyl Rubber
Peak Power Handling200 watts
RMS Power Handling100 watts
Sensitivity92 dB
Frequency Response40 - 25000 Hz
Impedance (Per Voice Coil)4 ohms
Top-Mount Depth2-5/8"
Bottom-Mount Depth2-7/8"
Cutout Dimensions5-1/16
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderSonic Electronix
Customer Review Summary for Polk Audio MM651UM
Average Customer Rating is 4.5 out of 5 stars:
4.5
based on 16 Reviews
Share your thoughts with others:
Write a Review
Rating Distribution:
5 star:
.
.
75%
4 star:
.
.
13%
3 star:
.
0%
2 star:
.
.
13%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
4.4
Value
4.5
Features
4.5
Design
4.9
Usability
4.8
what's this?
Quick Comparison:
Most helpful favorable review vs. Most helpful critical review
Most Helpful Customer Reviews:
January 11, 2012 Awesome Speakers!
Review by
Scott from Oklahoma
Overall
Durability
Value
Features
Design
Usability
I ordered these to install on the swim deck of my AR230 Yamaha boat. They sound amazing! Water rushes over them and drowns them every single time the boat stops and they have never skipped a beat. No disappointments.
Help other customers find the most helpful reviews
Was this review helpful to you?
Yes No
 Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
January 3, 2012 Great quality!
Review by
Boat Boy from Ottawa, ON, Canada
Overall
Durability
Value
Features
Design
Usability
These look good, and sound amazing. Add an amp to them and you'll be even more impressed.
Help other customers find the most helpful reviews
Was this review helpful to you?
Yes No
 Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
November 28, 2011 Motorcycle
Review by
Rudy from bakersfield ,ca
Overall
Durability
Value
Features
Design
Usability
I installed these on my dead center motorcycle fairing wit the bikertronics amp. The speakers blew out within 3wks. Do not recommended for motorcycle fairings.
Help other customers find the most helpful reviews
Was this review helpful to you?
Yes No
 Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
September 28, 2011 Boat speakers
Review by
Skydog from Byron,IL
Overall
Durability
Value
Features
Design
Usability
Great great speaker very happy!!!! And it is hard to please me!!!
Help other customers find the most helpful reviews
Was this review helpful to you?
Yes No
 Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
August 8, 2011 Excellent Speakers - amazing sound from such a small speaker
Review by
MastercraftX2 from Cheshire, Great Britain
Overall
Durability
Value
Features
Design
Usability
I bought these speakers after searching through many manufacturers products. I was comparing impedance, output, noise levels, size, etc and for their money there was nothing close to these. I have since installed them on my boat powered by a 2 channel 400W Amp (100W RMS / channel @ 4 ohm) and the sound completely blows me away. Wakeboarders at the end of an 80 foot line can hear the speakers loud and clear yet due to their position on the boat tower the people in the boat can still hold a conversation. I've seen speakers twice this size unable to match the performance of these units. If you want a loud and clear speaker look no further - they are truely amazing.
Help other customers find the most helpful reviews
Was this review helpful to you?
Yes No
 Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
View All 16 Reviews for Polk Audio MM651UM
Speaker Wire
Upgrade your factory speaker wire to aftermarket speaker wire and hear the difference! Using thicker gauges, newer technology, and higher quality materials, aftermarket speaker wire is key to upgrading the sound in your car.
 ProductPriceAdd?
20 ft. of 16 AWG KICKER X-Series Speaker Wire20 ft. of 16 AWG KICKER X-Series Speaker Wire
Get high quality sound from Kicker's twisted-pair, true to gauge speaker wire.		$19.99
50 ft. of 14 AWG StreetWires Speaker Cable50 ft. of 14 AWG StreetWires Speaker Cable
Streetwires Super Cable provides a zero-grip insulation for a smooth install as well as true gauge twisted wire construction.		$29.99
50 ft. of 16 Gauge Monster XLN Series Speaker Cable50 ft. of 16 Gauge Monster XLN Series Speaker Cable
Upgrade to clean and clear sound with Monster Cable's Xtra Low Noise (XLN) construction.		$35.00
Sound Dampening Material
Get optimal sound from your new speakers with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
 ProductPriceAdd?
Dynamat Xtreme Speaker KitDynamat Xtreme Speaker Kit
Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!		$21.99
Dynamat Dynaxorb Speaker PakDynamat Dynaxorb Speaker Pak
Revolutionary damping material designed to prevent distortion caused by the back wave of a speaker interfering with the front wave.		$19.99
Dynamat Rubber RollerDynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat products!		$18.99
Ballistic Speaker KitBallistic Speaker Kit
Eliminate speaker distortion, road noise, and rattles with this sound dampening material from Ballistic.		$15.99
Speaker Baffles, Spacers, and Depth Extenders
Mount your speakers in the location that you need with these speaker spacers, extenders, and adapters.
 ProductPriceAdd?
Speaker Baffles for your SpeakersSpeaker Baffles for your Speakers
Enhance the sound of your speakers with these easy to install speaker baffles.		$9.99
1" Depth Extender for 6-1/2" Speakers1" Depth Extender for 6-1/2" Speakers
Speakers too deep for your installation location? Add an extra inch of space with these depth extenders.		$6.99
1/2" Depth Extender for 6-1/2" Speakers1/2" Depth Extender for 6-1/2" Speakers
Need just a little more room to install your new speakers? These 1/2" spacers are just what you are looking for.		$4.99
Installation, Tools & Accessories
Get all of the tools and accessories to install your new speakers like a professional, or take your car to an expert and have them installed by redeeming professional installation cards.
 ProductPriceAdd?
Door Panel & Upholstery Remover ToolDoor Panel & Upholstery Remover Tool
The ideal tool for removing your car's door panels to replace you speakers!		$11.99
Universal Window Handle Remover ToolUniversal Window Handle Remover Tool
Designed to easily remove the manual window handles without breaking any interior pieces.		$4.99
Universal Wire Puller & GrabberUniversal Wire Puller & Grabber
Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!		$6.99
16-14 AWG Butt Connectors16-14 AWG Butt Connectors
These blue butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!		$4.99
Tone Generators and Sound Testing Equipment
Optimize your new system's sound quality by testing and calibrating all of your components with these items.
 ProductPriceAdd?
AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD		$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.		$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.		$12.99
Main Product
 ProductPriceAdd?
Polk Audio MM651UMPolk Audio MM651UM$169.99

Product Summary

Manufacturer: Polk Audio
Model number: MM651UM
Weight: 6.00 lbs
Internal SKU: mm651um
Internal product ID: 14717

Price Information

$239.99

–$70.00

$169.99

Add an Optional Extended Warranty

Add

$19.99

$

1 left in stock

save to wish list

Why Sonic Electronix?

February caption contest - win a Powerbag!

Customer Testimonial

Positive response and understanding of my requirement. A Highly recommended on-line shop to all.

- Aaron from Malaysia

See more…

Recently Viewed Items

mm651um thumbnail

13.5" Overhead Flip Down TFT LCD Monitor with IR Transmitter and Remote

mm651um thumbnail

Radio Replacement Interface for Select Chrysler, Dodge and Jeep Vehicles with CAN-bus

mm651um thumbnail

Override Kit for all Hard Drive Equipped Navigation Systems for Select 2009-2010 Ford, Lincoln and Mercury Vehicles