MS 9520



Plus One™ Woofer Cones

Harman’s patented (US patent #7,548,631) Plus One™ polypropylene cones provide more overall speaker-cone area than other cones in its class — the result is higher sensitivity, increased low-frequency output and greater musical character.


Balanced Dome Tweeters

Weather resistant tweeters deliver a smooth high-frequency response and increased power handling for highs and mids, which equates to more lifelike sound from vocals, cymbals, brass instruments and pianos.


Designed for the Elements

Their one-piece polymer basket is designed to stand the test of time, even after long exposure to the sun and salt. Rubber surrounds offer superior edge protection and are much more reliable than foam. And a grille-mounted tweeter allows the front of the woofer cone to be sealed, protecting the motor structure from sea spray.


Individually Voiced

For most brands, off-the-shelf speakers and a cursory approval of frequency response curves are good enough. That’s not the case with JBL. We don’t only listen to our speakers against the competition — we voice them against each other to ensure each line has the consistent JBL sound signature that’s known and sought out by those who care about their audio. This is just part of an extensive development process undertaken by some of the best transducer engineers in the world to provide the finest listening experience at any price point.


OEM-Level Reliability Testing

JBL tests every speaker design to rigid specifications, subjecting them to extreme conditions that would break lesser speakers — this ideal for equipment that will be heavily driven in the elements. We freeze them, bake them, shake them, blast them with ultraviolet light and drive them at full power for days to make sure your audio investment lasts for years.

Specs & Downloads

Item# MS9520


The sound of the sea could use an upgrade

The new JBL Marine Series Speakers are ready to take on anything Mother Nature throws your way. With Plus OneTM woofers and balanced dome tweeters, you’ll hear the clarity of your audio above the raucous sounds of the sea. Designed to take on the sun, sea spray and scrub downs, these powerful speakers feature waterproof motor structures, a one-piece cast-polymer basket, a sealed magnet, and rubber surrounds.

General Specifications

6” x 9” coaxial

Audio Specifications

92 db
Nominal Impedance
4 ohms
Frequency Response
37 Hz – 20 kHz
Power Handling (Peak)

Documents & Downloads

Reviews and Q&A

Customer Reviews

Rated 5 out of 5 by from Clean looks sound great Bought a couple of weeks ago put them in a small wedge shape box a bought online for 6x9 speakers, the box does have insulation in it, the speakers sound amazing they have plenty of bass and treble, running them flat with a little gain for subs, very happy with speakers, the only negative would be the mounting screws seem cheap, Allen wrench is required bottom of screw head is rounded so wrench doesn't fit in well recommend jbl use torque or Phillips head screws
Date published: 2018-05-02
Rated 5 out of 5 by from Great product , although plastic could be the better quality , and better screws ! Will be good if JBL will consider that for the future product quality ! ( screw got Brocken during the installation
Date published: 2016-06-03
Rated 5 out of 5 by from very good sound.great voice separation installed with 2 channel jbl 6002 amp and 10" jbl powered sub in my 20 foot boat sound is amazing and very clean separation of voice and music thanks! Dan
Date published: 2016-05-23
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Product Q&A

What is the depth of the speaker after the cut out and do you have a drawing of the cut out and overall dimensions

Asked by: Ben Robertson
I didn't see the template inside the box of the speakers I just purchased. Is this available for download somewhere?
Answered by: scottgthomas
Date published: 2021-06-06

What is the RMS wattage

Asked by: Froghunter
Our MS 9520 continuous average rating or RMS is 100W. For more information, check out the specifications here:
Answered by: Chastine
Date published: 2021-06-06

Do these speakers come in any other color? I want to place them in the risers of my deck but would really like a color to match my deck which is dark brown and tan/beige.

Asked by: oneshot85
Hi, The MS 9520 only comes with the white color.
Answered by: Mario at Customer service
Date published: 2021-06-06

Would you recommend the speaker to be mounted in a bag on a motorcycle, which would be exposed to rain.

Asked by: Bigdave
We would like to work with you directly to help you with your issue. Please submit a case request at and the Customer Service Team will be more than happy to assist you.
Answered by: Mario at Customer service
Date published: 2021-06-06

I will be putting your MS 9520 under the roof of my UTV my question is can I install these speakers into a sealed enclosure if so what is the air volume specs for these speakers. Most likely the boxes will be under .5 cubic foot.

Asked by: Rich56
Our marine speakers are designed for free-air/infinite-baffle applications, meaning that they don't require an enclosure. If you'll be putting these into an enclosure, all you has to do is put them in a small sealed box, and he will be good to go. Small, meaning anywhere from just big enough to hold the speaker up to .3 cubit foot, will do a great job for the speaker.
Answered by: Jem at Customer Support
Date published: 2021-06-06

Is there a template for cut out of them

Asked by: Froghinter
There is no included template with the JBL MS9520. You may download and print any 6x9 speaker templates from the internet.
Answered by: Jem at Customer Support
Date published: 2021-06-06

Will a 30w stereo head unit drive these speakers?  I know underpowered speakers can be damaged.

Asked by: Case
I hooked these up and listened to them before adding a small amp. sounds good,but definitely much better with power. as far as damage I am unsure. hope this helps.Dan
Answered by: Dan the Man
Date published: 2021-06-06

Are the magnets shielded? What is the minimum recommended mounting distance from a marine compass?

Asked by: wasabi
Unfortunately, our marine speakers are not shielded. Mounting distance of the speaker would really depend on how the compass would react to the speaker. Try holding the speaker near the compass and walk away from the compass until it stops reacting to the speaker. The distance from where you stopped would be a good location to mount the speaker.
Answered by: Amir at Customer Service
Date published: 2021-06-06
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