Item# MS9520

MS 9520


300-Watt, 6” x 9” Two-Way Marine Loudspeaker

$139.95139.95 per pair
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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.

What's in the box?

  • 2 MS9520 speakers
  • 1 set of mounting hardware
  • 2 sets of speaker wire

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.

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.

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.

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.

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.

6” x 9” coaxial
92 db
Nominal Impedance
4 ohms
Frequency Response
37 Hz – 20 kHz
Power Handling (Peak)

The latest owner's manuals, quick start guides, and documents.

1 Year Warranty

Products purchased online or from an authorized local retailer and under warranty may qualify for an exchange with a valid receipt.

Purchases made from an unauthorized dealer will not be eligible for exchange.

Request an Exchange

Call us: 1.800.336.4525

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  • Parts and accessories
MS 9520 is rated 5.0 out of 5 by 2.
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
  • 2016-09-27T07:55CST
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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: 2016-07-18

IS this speaker submersible in water, for use on a seadoo gtx limited 300?

Asked by: marclugt
The MS 9520 features UV- and Water-Resistant. This cannot be submerged in water.
Answered by: Joe G at Customer Service
Date published: 2016-05-27

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: 2016-05-24

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
Thank you for your inquiry, the drawing and the template cut out is inside the box. and the depth of the is speaker is 3-5/16" (83mm)
Answered by: Randy at JBL
Date published: 2016-02-15
  • 2016-09-27T07:58CST
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