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Polk MM522 5.25" Coaxial Speakers with Ultra Marine Certification - Picture 1 of 2

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Polk Audio MM522 300W 5.25" Coaxial Speakers - Black

4.05 product ratings

onlineaudio1 (507)

100% positive feedback

Price:

$119.99

Free shipping

Estimated delivery Thu, Nov 13 - Tue, Nov 18

Returns:

30 days returns. Seller pays for return shipping.

Condition:

New

Handles up to 80 watts RMS (240 watts peak power). Sensitivity: 92 dB. Frequency response: 50-40,000 Hz. 1" Terylene fabric tweeter. Weep holes for proper drainage.

About this product

Product Identifiers

BrandPolk Audio

MPNMM522

GTIN0747192128029

UPC0747192128029

ModelPolk Audio MM522

eBay Product ID (ePID)17002463513

Product Key Features

TypeFull-Range Speaker(s)

Speaker Size5.25in.

RMS Power300W

Dimensions

Weight393 Hundredths Pounds

All listings for this product

Last one

item 1 Polk Audio MM522 5.25" 2-Way Car Stereo Boat Marine ATV Motorcycle Speakers Pair

$118.00

Free shipping

Last one

item 2 Polk Audio MM522 5.25" 2-Way Car Stereo Marine Boat ATV Motorcycle Speakers Pair

$119.99

Free shipping

item 3 Polk MM522 5.25" Coaxial Speakers with Ultra Marine Certification

$119.99

Free shipping

item 4 MM522 Polk Audio 5.25" Coaxial Speakers ULTRA Marine Certified NEW PAIR!!!

$169.00

Free shipping

item 5 Polk Audio MM522, MM Series 5.25'' 2-Way Car / Marine / UTV / ATV Speakers

$179.00

Free shipping

item 6 Polk Audio MM522 300W 5.25" spoeaker Harley Davidson Street Glide, Road Glide

$125.00

listings for this product

Ratings and Reviews

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4.0

5 product ratings

2 users rated this 5 out of 5 stars
2 users rated this 4 out of 5 stars
0 users rated this 3 out of 5 stars
1 users rated this 2 out of 5 stars
0 users rated this 1 out of 5 stars

Good sound quality

Good value

Easy to install

Most relevant reviews

by blitzlinger
Jul 21, 2025
Very good highs, but nonexistent lows. G...
Very good highs, but nonexistent lows. Good speakers if paired with a subwoofer. I put mine in a Polaris Ranger and they can get loud despite the small size.
Verified purchase: YesCondition: New
by ranger498
Feb 16, 2020
Sadly not what was expected
1st I have been using polk marine speakers for years ,I recently Purchased these speakers as a upgrade to the stock speakers on my motorcycle ,sadly the bass is lacking vs the stock speakers, I swapped them out and tried some polk db (lower end polks) and even they sounded better overall than these mm series speakers,another issue I had was fitting the speakers into the stock location the position of the crossover and speaker terminals made fitment difficult, I was able to finally get it into thevstock location with some trimming of the stock tube but clearly what they tried to help save you in depth by using neo magnetic was lost with the crossover plate ,sadly I cant recomend them especially at this price point. I suggest you look at the lower end db model or another speaker all together .
Verified purchase: YesCondition: Pre-owned
by bigy2002
Jan 19, 2019
Good stuff!
Checked ohm and resistance, found loose wires and soldered, took ten minutes and now they work great!
Verified purchase: Yes
by danlow_70
Apr 19, 2019
Review
Its a good speaker
Verified purchase: YesCondition: New