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Polk Audio Coaxial Speakers 6.5" 300W
Polk Audio Coaxial Speakers 6.5" 300W
Polk Audio Coaxial Speakers 6.5" 300W
Polk Audio Coaxial Speakers 6.5" 300W
Polk Audio Coaxial Speakers 6.5" 300W
Polk Audio Coaxial Speakers 6.5" 300W
Polk Audio Coaxial Speakers 6.5" 300W
Polk Audio Coaxial Speakers 6.5" 300W
Polk Audio Coaxial Speakers 6.5" 300W
Polk Audio Coaxial Speakers 6.5" 300W
Polk Audio Coaxial Speakers 6.5" 300W
Polk Audio Coaxial Speakers 6.5" 300W
Polk Audio Coaxial Speakers 6.5" 300W
Polk Audio Coaxial Speakers 6.5" 300W
Polk Audio Coaxial Speakers 6.5" 300W
Polk Audio Coaxial Speakers 6.5" 300W

Polk Audio Coaxial Speakers 6.5" 300W

(125 reviews)

Cruise on your boat with your own personal soundtrack blasting all around you on the Polk Audio MM1 Series 6.5 Inch Coaxial Speakers. These speakers are ultra marine certified for total waterproof design. They're the premium audio upgrade your boat craves with studio quality, total sonic accuracy. Meticulously conceived, designed, and engineered for advanced high quality sound, you'll love hearing every beep, tweet, and twang in your music. These speakers also come with 2 grilles, 2 sets of mounting hardware, 2 plastic adapters, and 2 wiring harnesses so you can hook them up and start blasting your tunes around the lake right away.

Cruise on your boat with your own personal soundtrack blasting all around you on the Polk Audio MM1 Series 6.5 Inch Coaxial Speakers. These speakers are ultra marine certified for total waterproof design. They're the premium audio upgrade your boat craves with studio quality, total sonic accuracy. Meticulously conceived, designed, and engineered for advanced high quality sound, you'll love hearing every beep, tweet, and twang in your music. These speakers also come with 2 grilles, 2 sets of mounting hardware, 2 plastic adapters, and 2 wiring harnesses so you can hook them up and start blasting your tunes around the lake right away.

$219.00 - $296.43

in 3 offers

The lowest price for Polk Audio Coaxial Speakers 6.5" 300W right now is $219.00 at Ubuy Australia, compared across 3 retailers.

The all-time low was $182.58 on 27 Feb 2026 — today's price is 20% above the lowest ever. That's a little above the best price we've seen.

Prices last updated 6 Nov 2026.

Size:

5.25"
6.5" 300W

Polk Audio Coaxial Speakers 6.5" 300W

$219.00

(125 reviews)

Cruise on your boat with your own personal soundtrack blasting all around you on the Polk Audio MM1 Series 6.5 Inch Coaxial Speakers. These speakers are ultra marine certified for total waterproof design. They're the premium audio upgrade your boat craves with studio quality, total sonic accuracy. Meticulously conceived, designed, and engineered for advanced high quality sound, you'll love hearing every beep, tweet, and twang in your music. These speakers also come with 2 grilles, 2 sets of mounting hardware, 2 plastic adapters, and 2 wiring harnesses so you can hook them up and start blasting your tunes around the lake right away.

Cruise on your boat with your own personal soundtrack blasting all around you on the Polk Audio MM1 Series 6.5 Inch Coaxial Speakers. These speakers are ultra marine certified for total waterproof design. They're the premium audio upgrade your boat craves with studio quality, total sonic accuracy. Meticulously conceived, designed, and engineered for advanced high quality sound, you'll love hearing every beep, tweet, and twang in your music. These speakers also come with 2 grilles, 2 sets of mounting hardware, 2 plastic adapters, and 2 wiring harnesses so you can hook them up and start blasting your tunes around the lake right away.

Price comparison

Price data powered by pricesAPI.io

Last updated at 06/11/2026 14:50:50

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64Amazon.com.au

$296.43

Polk Audio MM1 Series 6.5 Inch 300W Coaxial Marine Boat ATV Car Audio Speakers

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=u-buy.com.au&sz=64Ubuy Australia

$219.00

Polk Audio MM652 Monitor Series 6.5" Coaxial Speaker, Ultra-Marine Cert.

Delivery $127

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64eBay.com.au

$286.36

Polk Audio Mm652 6.5" 2-way Car Audio Stereo Marine Boat Atv

Delivery $81.45

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Reviews

2011 Harley Street glide speaker upgrade.
15 August 2018bahnertunnel

originally posted on ebay.com

I have these in my 2011 Street Glide running off of a Rockford Fosgate Power T400ad 2 channel and they are loud and crystal clear. Killer highs with decent bass for a 6.5" speaker. Best batwing set that I have heard. Nice light weight speaker that won't damage the fragile inner mounts of a batwing fairing. Completely satisfied with this purchase.

Decent Subwoofer
19 August 2023grumpyjim-65

originally posted on ebay.com

Good sound for the price. I took away one star because the terminals are pretty flimsy. Connectors were a little tight, & I was afraid of breaking them before I got the wires attached. Otherwise a good value.

Excellent mount for many vehicles
23 November 2021rockhound66

originally posted on ebay.com

I dont like my phone up in my windshield or clipped to a vent and had trouble finding anything that would hold well down lower. This mount has a very small base and can be mounted in many places out of the way. Magnet is very strong. Only down side is my contact charging was blocked by the large square metal plate on the phone. The smaller round plate is used down lower to allow contact charging again. Both plates are supplied.

Specification

Vehicle TypeCar
RMS Output100 Watt
Maximum Output300 Watts
Channels2-way
Quantity2 speakers

Price comparison

Updated about 19 hours ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64
Amazon.com.au

$296.43

Polk Audio MM1 Series 6.5 Inch 300W Coaxial Marine Boat ATV Car Audio Speakers

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=u-buy.com.au&sz=64
Ubuy Australia

$219.00

Polk Audio MM652 Monitor Series 6.5" Coaxial Speaker, Ultra-Marine Cert.

Delivery $127

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64
eBay.com.au

$286.36

Polk Audio Mm652 6.5" 2-way Car Audio Stereo Marine Boat Atv

Delivery $81.45

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Reviews

2011 Harley Street glide speaker upgrade.
15 August 2018

I have these in my 2011 Street Glide running off of a Rockford Fosgate Power T400ad 2 channel and they are loud and crystal clear. Killer highs with decent bass for a 6.5" speaker. Best batwing set that I have heard. Nice light weight speaker that won't damage the fragile inner mounts of a batwing fairing. Completely satisfied with this purchase.

bahnertunnel originally posted on ebay.com
Decent Subwoofer
19 August 2023

Good sound for the price. I took away one star because the terminals are pretty flimsy. Connectors were a little tight, & I was afraid of breaking them before I got the wires attached. Otherwise a good value.

grumpyjim-65 originally posted on ebay.com
Excellent mount for many vehicles
23 November 2021

I dont like my phone up in my windshield or clipped to a vent and had trouble finding anything that would hold well down lower. This mount has a very small base and can be mounted in many places out of the way. Magnet is very strong. Only down side is my contact charging was blocked by the large square metal plate on the phone. The smaller round plate is used down lower to allow contact charging again. Both plates are supplied.

rockhound66 originally posted on ebay.com
Give them a chance. They need to break in.
3 September 2021

I took a chance on these speakers. I was looking at some twice the price but read good things about these. I put them in the fairing of my 2017 street glide, powered by a 200 watt per channel sound digital amp.. At first I wasn't real impressed but after about 10 hours of play they really opened up and was louder and clearer. If you get these know that they need to break in. I am 100% satisfied and I'm a bit snobbish about my sound.

strats321 originally posted on ebay.com
My preferred motorcycle speaker!
24 May 2020

Incredibly clear and loud on my motorcycle at hwy speeds. Some will complain of bass deficiency, but no 6" speaker produces bass well. Fantastic mids, highs, clarity! I used the discontinued mm651 prior (3 pair over 5 years). With 150 watts applied to 100 watt speaker, I would blow one every 6 months to a year. In a car, I suggest you pair with a sub.

abbcon61 originally posted on ebay.com
Not nearly as good as the DB651
13 April 2020

I was under the impression that these were the latest and greatest upgrade in the 6.5" coaxial lineup from Polk. I got a new vehicle and loved my DB651s in there. These MM652s have almost no bass response. The factory trash has better response and excursion than these. The clarity is great, though. But, I need some mid-bass to fill out the sound envelope.

justcallben originally posted on ebay.com
Not worth the money! Very disappointed!
1 July 2020

Speaker claims to handle a fair amount of power but it does not! I installed 4 of these in my fairing of the 5.25 and the two 6.5s in my saddlebags on a 600w rms cerwin vega marine amplifier. Blew them the first day of riding. They sounded great. Until they didnt. They overheat very quickly in direct sunlight and the surround seemed to weaken wich then allowed the mid driver to bottom out and seize.

joshugla-0 originally posted on ebay.com
Robust music for open spaces.
1 May 2018

Installed in a Wrangler YJ in a front sound pod. Selected for Marine rating and good sound reviews...Yes! Excellent for my open bodied ride with plenty of clear, crisp volume from the Sony head unit. Overcomes road noise quite well without needing to go into nuclear sound mode.Installation was straightforward, but the grilles needed a touch modification in my specific install. The sound range is substantial, but I will add in a sub shortly to compensate for road and exhaust noise on the bottom.

gutthans originally posted on sonicelectronix.com
The price is right.
2 March 2022

These are better than scoche, and dual, worse than pioneers and kickers. Good in between. Sounds is clean and crisp, I have no complaints. My entire system is autotek, 6.5's, 6x9's and 2 12" dvc subs powered by a Boss PV3700 5 channel. Cheap system with overall decent performance. It won't blow you out of the car but you will feel the music.

xenocide_21 originally posted on ebay.com
easy install and sound great.
23 January 2023

I replaced the door speakers in my 2001 Yukon XL with these and it was very easy. I used the original 'snap-in' retainers. They sound very good.

interceptorf originally posted on ebay.com

Specification

Vehicle TypeCar
RMS Output100 Watt
Maximum Output300 Watts
Channels2-way
Quantity2 speakers

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