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Polk Audio MM 522

Mobile Monitor Series 5-1/4" 2-way car speakers

Item # 107MM522

We're big fans of Polk speakers for their reliability and precise sound, and their premium Mobile Monitor Series MM...

Find what Fits your car

We're big fans of Polk speakers for their reliability and precise sound, and their premium Mobile Monitor Series MM...

Item # 107MM522

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C$279.99 pair
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About the Polk Audio MM 522

Next-level Polk speakers

We're big fans of Polk speakers for their reliability and precise sound, and their premium Mobile Monitor Series MM 522 5-1/4" car speakers only improve on that well-earned reputation. You can count on low distortion and maximum performance from this flagship Polk line, the result of years of research and development. These rugged car speakers are ultra-marine certified, able to shrug off harsh environmental abuse to deliver exceptional sound for nearly any application, from cars to boats.

Next-level Polk speakers

We're big fans of Polk speakers for their reliability and precise sound, and their premium Mobile Monitor Series MM 522 5-1/4" car speakers only improve on that well-earned reputation. You can count on low distortion and maximum performance from this flagship Polk line, the result of years of research and development. These rugged car speakers are ultra-marine certified, able to shrug off harsh environmental abuse to deliver exceptional sound for nearly any application, from cars to boats.

Perfect for any power source

The highly efficient speakers will work well with an aftermarket radio, but keep in mind that they will really show off their stuff with a lot of power from an aftermarket amp. The titanium-coated 5-1/4" polymer woofer cone, backed by a space-efficient magnet, delivers the full sound you've been hungry for. A low-profile, lightweight carbon basket features excellent venting to keep these speakers cool when you're really pouring on the power. And your music's high frequencies will soar, thanks to delicate handling by the newly designed 1" Terylene fabric dome tweeter. 

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Product highlights:

  • 5-1/4" 2-way speakers
  • titanium coated polymer woofer cone with Santoprene rubber surround
  • 1" Terylene fabric tweeter
  • certified for marine use (IP56 rating)
    • non-corrosive fiberglass reinforced ABS basket
    • epoxy coated crossovers
    • waterproof surrounds
    • weep holes for proper drainage
  • handles up to 80 watts RMS (240 watts peak power)
  • frequency response: 50-40,000 Hz
  • sensitivity: 92 dB
  • top-mount depth: 2-3/8"
  • grilles included
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # AA8522-A
KEEP READINGREAD LESS

What's in the box:

  • Two 2-way speakers
  • 2 Grilles
  • Two 38" Lengths of speaker wire (quick slides on one end and tinned wire on the other)
  • Eight 1" Stainless steel screws
  • 8 Stainless steel speed clips
  • 2 Factory grille badges
  • Installation / Specification sheet
  • Online product registration information

Customer reviews

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Polk Audio MM 522 reviews

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Great speakers

Crutchfield customer from Hudson, FL on 7/29/2019

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Love the speakers. I've only had them for a week but they sound great and the price was good.

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Polk Audio MM 522

Crutchfield customer from Columbus, OH on 7/28/2019

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I added these to my bike & they just don't have much Bass & if you turn the bass up they can't handle it

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Cons:

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Polk mm522

Crutchfield customer from Green Bay, WI on 7/21/2019

2005 Chevrolet Silverado 2500/3500

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Great speaker. Clear- good sound quality. Easy to install

Pros:

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Polk Audio MM 522

Crutchfield customer from Colgate, WI on 4/10/2019

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great build quality, nice swivel tweeter

Pros: build quality

Cons: none

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Polk Audio MM 522

Crutchfield customer from Brooksville, FL on 10/9/2018

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Did not sound as good as the Rockford Fosgates I was replacing.

Pros:

Cons:

Crutchfield response on 10/10/2018
We're sorry you're disappointed with your speakers. Whenever you are not completely satisfied with anything you purchase from Crutchfield, please contact our Customer Support team at 1-800-955-9091. Purchases from Crutchfield can be returned or exchanged within 60 days of the purchase.

1 of 1 found this helpful

Polk Audio MM 522

clifford from Monument, CO on 8/21/2018

2006 Chevrolet Silverado 1500

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Speakers sound good for what they are (inexpensive speakers). Perfect for replacing the blown speakers in my work truck. I would not install them in my Porsche. They my be better than I think because I am still using the base, 12 year old GM head unit.

Pros: cost, two way

Cons: narrow dynamic range

Crutchfield response on

0 of 2 found this helpful

Best Sound for the Price

Joshua from Dewey, AZ on 8/6/2018

2003 Jeep Wrangler

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I installed these in my jeep because I wanted something that was waterproof that way I did not have to worry about leaving the top down and the speakers getting ruined. They installed great however I had to get a wooden circle ring speaker adapter to fit in the stock hole in the sound pod. The speaker fits farther out the hole and it looks great as you can see from my picture. These speakers sound great and come with nice wire to connect to the wiring adapters.

Pros: Great Sound Great Price Great Brand

Cons:

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0 of 0 found this helpful

Polk Audio MM 522

Crutchfield customer from Bloomingdale, NJ on 8/5/2018

1974 Jaguar XKE

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Very poor bass. I don't recommend use without sub woofer

Pros:

Cons:

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Polk Audio MM 522

Crutchfield customer from Donalsonville, GA on 7/29/2018

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Great sound and clarity. Great price and professional services. Thanks Larry S.

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Clear, crisp sound

Jon from Rome, GA on 7/15/2018

2012 Harley-Davidson Street Glide

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I replaced the factory fairing speakers on my 2012 Harley with these MM522's. Although I will probably add an amp later to bring out a little more bass and get full, rich sound, I am very pleased with the clarity of these speakers, even at highway speeds.

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2 of 2 found this helpful

Sound A+ / Build Quality C-

Crutchfield customer from Anoka, MN on 7/10/2018

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Purchased 4 and installed on my motorcycle. They sound great. However, after about 20 hours combined riding/listening, the center cone on one has become loose and gets distorted.

Pros: Sound output and clarity.

Cons: Build quality and longevity.

Crutchfield response on 7/11/2018
We're sorry you're having issues with one of your speakers. Whenever you encounter a problem with anything you purchase from Crutchfield, please contact our Tech Support team. Purchases from Crutchfield can be returned or exchanged within 60 days of the purchase, and lifetime tech support comes with every Crutchfield purchase.

0 of 0 found this helpful

sounds great

Shawn from Woodway, TX on 6/25/2018

1999 Jeep Wrangler

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Sounds great in my 1999 Jeep Wrangler

Pros:

Cons:

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Polk Audio MM 522

Crutchfield customer from Semmes, AL on 5/23/2018

2016 Nissan Frontier PRO-4X

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Worth the price

Pros:

Cons:

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Polk Audio MM 522

Crutchfield customer from Gilbert, AZ on 5/20/2018

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Upgraded from a different speaker. No distortion, crisp clear sound. No issues at high volume on a motorcycle at speed. Love them.

Pros:

Cons:

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4 of 4 found this helpful

Limited Space

Bruce from Shreveport, LA on 5/13/2018

1998 Jeep Wrangler

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These sound great for their size. This is the largest speaker that will fit in my Jeeps Soundbar.

Pros: These speakers sound very good for their size.

Cons: None.

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Polk Audio MM 522

Crutchfield customer from Memphis, TN on 5/13/2018

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sounds better than the speakers that were on my boat.

Pros:

Cons:

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Brilliant

Gary from Lucama, NC on 4/20/2018

2008 Dodge Nitro

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All I can say about these speakers is that the sound is amazing and get better the more volume you give them. Well done POLK.

Pros: Worth every penny.

Cons: None

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1 of 1 found this helpful

Polk Audio MM 522

Crutchfield customer from Lexington, KY on 4/5/2018

1996 Jeep Cherokee

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very good for the size. I installed these in the front doors of my Jeep Cherokee and sound quite good with the Pioneers in the rear. Due to room restrictions, 5.25 in speakers are the largest I can use. These sound bigger than they are. Response is what you would expect from Polk Audio.

Pros:

Cons:

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Great sound

Dusty from Taylorsville, UT on 11/19/2017

2002 Ford Mustang

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They sound great. Honestly once i realized my speakers weren't stock but blaupunkts(sp?) I almost left it and returned them. But after a while the BP just sounded bad and super middy and bassy. So I put these in and am surprised. W the rear BP for bass these things sound quite awesome. I need to get a sub and amp, yeah but i usually just run the Grandma setup. These things sound great just off of the head.

Pros: Good sounding, adjustable tweets

Cons: None so far

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Polk Audio MM 522

John from Southside, AL. on 9/19/2017

2013 Ford Mustang

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Mounted them in springer headlight bodies and attached them to my sportster sound is clear and loud. I would recommend them.

Pros: Compact waterproof

Cons: None so far.

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More details on the Polk Audio MM 522

Pat M.

Features & specs

General
Speaker Size 5 1/4
Design 2-way
Tweeter Design 1" Dome
Impedance (Ohms) 4
Tweeter Composition Terylene Fabric
Woofer Composition Titanium Coated Composite
Woofer Surround Santoprene Rubber
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Sensitivity (1W at 1 meter) 92
Sensitivity at 2.83 volts N/A
Frequency Response 50 - 40k Hz
Minimum RMS Wattage ---
Maximum RMS Wattage 80
Peak Power Handling (Watts) 240
Top-mount Depth (Inches) 2 7/16
Bottom-mount Depth (Inches) 2 5/8
Cutout Diameter or Length (inches) 4 5/8

Product Research

Features

Dynamic Balance: Dynamic Balance is a proprietary Polk Audio technology using laser imaging to determine what combination of speaker materials create the least amount of resonance. Eliminating resonance in speakers results in a wide, smooth response and low distortion.

Rubber Surrounds: The inner and outer woofer surrounds are Santoprene rubber, to keep water from leaking through the speaker.

Swivel Tweeters: The 1" tweeters pivot, so they can be angled for optimum imaging. The tweeter material is Terylene, a brand name of polyethylene terephthalate (PET).

Neodymium Magnets: The speakers' neodymium magnets offer exceptional strength to performance ratio and are small and lightweight.

Basket: The speaker baskets are fiberglass reinforced ABS, lightweight and corrosion resistant.

Crossover: The crossover components are coated with epoxy to prevent corrosion. The low pass filter is 1st order (6 dB/octave) and the high pass filter is 2nd order (12 dB/octave).

Ultra-Marine Certified: Polk MM1 Series speakers are tested to withstand exposure to salt-fog, UV rays, and humidity, so they'll work well in boats and cars. They also include stainless mounting hardware for corrosion resistance.

Drainage: The speaker should be mounted so the slots along the perimeter of one side of the basket are at the bottom, so any water trapped between the speaker and grille can drain.

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Customer Q&A

1 question already asked

Q
What is the mounting hole pattern? (Length between center of holes diagonal and adjacent)
[ Tom  Jul 15, 2019 ]
3 answers
A
Approx. 5.4" diag. and 3.8" adjacent.
[ Richard  Aug 02, 2019 ]
A
I do not know. They fit in the factory speaker holes for a 2006 Chevy Silverado (extend a cab) front door speakers. If you do not find the answer anther way perhaps you can research what the stock hole size is for my truck.
[ cliff  Aug 02, 2019 ]
A
Thank you for your question, Tom. The Polk Audio MM522 have a diagonal bolt measurement of 5.627", and the perimeter measurement is 4.037". Chat with an Adivsor online, or by phone at 1-800-324-9695. They'll be happy to help you out with any other questions you may have regarding fitment!
[ Jess  Aug 02, 2019 ]  Staff

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