Best 6X9 Marine Speakers Reviews

Are you looking for the best 6X9 marine speakers? Well, you’ve come to the right place.

What sets car speakers apart from marine speakers is that the latters are designed and built tough to withstand harsh outdoor conditions. Because marine speakers are exposed to sun, water, humidity, salt, moisture, UV rays …etc, they must be able to withstand all of that and keep sounding great. Therefore, when you’re looking for your set of 6X9 marine speakers to mount on your boat, durability is one of the most important factors to consider.

Durability isn’t the only factor to consider, there’s also power handling and sensitivity rating, which dictate how good the speakers will sound. Here at StereoChamp, we’ve done the heavy lifting for you. We’ve compiled a list of the best 6X9 marine speakers on the market and reviewed them, so that you can make an informed buying decision when time comes to replace or upgrade your factory-installed boat speakers.

Best 6X9 Marine Speakers Reviews

Infinity Reference 6912m Review

The Infinity Reference 6912m speakers are some of the best 6X9 marine speakers that you can buy. These speakers are designed and built with sound quality in mind. They can handle 100 watts on continuous basis and are rated for a sensitivity rating of 96 dB.

The Infinity Reference 6912m speakers are made with high quality materials that can withstand harsh outdoor conditions. Their woofer cones are made with polypropylene and are bonded to a rugged, UV-resistant rubber surround for maximum stability and durability. Their tweeters are mounted in the grilles giving the woofer cone a full surface without a hole in the center which allows the speakers to produce awesome mid-bass punch. These grille-mounted 1-1/4″ tweeters offer excellent high-frequency dispersion.

These speakers feature stylish non-removable grilles that are specially treated to retain their shiny look even when exposed to sunlight, moisture, UV rays …etc.

The thing we like the most about these speakers – aside their stylish design – is their impressive sensitivity rating. This means that these speakers will sound awesome running off of just your receiver.

Sensitivity refers to how effectively a speakers converts power (watts) applied to it into volume (decibels). The higher the sensitivity rating, the louder your speakers will play with a given amount of power. With that said, if you’re audio system is running off of a factory receiver, you’d better opt for speakers with a high sensitivity rating.

A speaker with a sensitivity rating that’s 3 dB higher than another speaker’s only needs half as much power to deliver the same amount of sound.

All in all, If you are on the lookout for reasonably priced, yet good sounding marine speakers to mount in in the cab/deck of your boat, look no further than Infinity Reference 6912m. Dollar for dollar, they’re the finest, best budget-friendly 6X9 marine speakers on the market.

As for cons, it’s really difficult to think of any. If anything, I’d say that despite these speakers being made with high-quality, durable materials that can handle life on the water, they are not ASTM certified for fog, salt and UV resistance.

Infinity Reference 6912m Specifications
  • Size : 6X9
  • Design : 2-way
  • Sensitivity : 96 dB
  • Power Handling 
    • Peak :   300 watts
    • RMS :  100 watts
  • Frequency range :  36 – 20,000 Hz
  • Top-mount depth :  3-1/16″
  • Impedance : 4 ohms

Polk Audio AA2691-A MM691 Review

This is what you can get if you’re willing to shell out some serious dough. The Polk Audio MM691 speakers are going to be the most expensive and the most powerful pick of the lot by far.
These speakers are very well-engineered. They can handle up to 125 watts RMS. Combine that with their impressive sensitivity rating of 94 dB and you get speakers that will make a night and day difference.

The Polk MM691 6″x9″ speakers feature honeycomb-textured woven glass fiber composite woofer cones that are very responsive. The woofer cones are supported by butyl rubber surround for enhanced durability. Their large voice coils on the other hand, which are over an inch in diameter allow the speakers to handle a great amount of power on continuous basis.

These speakers are fitted with 1″-3/4″ silk composite dome tweeters for spectacular, bright highs that can cut through the noise of the wind, waves, water, and engine roar. These crystal clear highs will blend perfectly with the low notes so your music sound well-balanced. Speaking of lows, the Polk MM691 6X9 speakers won’t turn your ride into a rolling thunderstorm of bass. Don’t get me wrong, they deliver decent bass, however, if you’re a seasoned basshead, that’s not going to be enough. When it comes to mids and highs, that’s where these speakers really shine.

Bear in mind that since these speakers are designed to handle way more power than most 6X9 marine speakers we listed here, they must be amplified. There’s no head unit out there that can put out the amount of power these speakers require. So, in order to avoid under-powering these speakers, hook them up to an external amplifier for optimal result.

Bang for the buck, the Polk Audio MM691 are the best sounding 6X9 marine speakers that you can buy.

Polk Audio MM691 Specifications
  • Size : 6X9
  • Design : 3-way
  • Sensitivity : 94 dB
  • Power Handling 
    • RMS :  125 watts
    • Peak :   300 watts
  • Frequency range :  30 – 25,000 Hz
  • Top-mount depth :  3-3/16″
  • Impedance : 2.7 ohm

JBL MS9200 Review

Want something cheaper? JBL has got you covered.

JBL is a pretty big name in the mobile audio industry. They are known for their long tradition of making
quality car speakers, and and their marine speakers are no exception.

The MS-9200 are the best 6X9 marine speakers in the JBL MS series. These speakers would be great investment for anyone who’s looking for a great, budget-friendly replacement for factory-installed speakers.

The JBL MS9200 are rated for a sensitivity rating of 91 dB and can handle 100 watts on continuous basis. With their waterproof motor structure, sealed cones, one-piece cast-polymer basket, durable rubber surrounds and a grille-mounted tweeter, the JBL MS-9200 speakers are built tough to withstand and to survive salt water, corrosion and other harsh outdoor conditions – and show you a great time out there on the water.

As for sound quality, these speakers will make noticeable difference compared to factory-installed speakers. The bass is clean and full, the mids are clear and the highs are very crisp. All in all, the JBL MS9200 speakers are a great value for the buck. They are among the best sounding marine speakers we’ve come across in their price range.

JBL MS9200 Specifications
  • Size : 6X9
  • Design : 2-way
  • Sensitivity : 91 dB
  • Power Handling 
    • RMS :  100 watts
    • Peak :   300 watts
  • Frequency range :  37 – 20,000 Hz
  • Top-mount depth :  3-5/16″
  • Impedance : 4 ohm

Boss Audio MR690 Review

If you’re on a very tight-budget and looking for a decent replacement for your stock speakers, we can’t think of a good, budget-friendly pair of 6X9 marine speakers than BOSS AUDIO MR690.
According to Boss Audio, the MR690 6X9 marine speakers have a sensitivity rating of 95 db and can handle up to 175 watts RMS on continuous basis. With that kind of power handling, you’ll certainly need an external amplifier to power these speakers.

That said, don’t expect these speakers to fill your boat cockpit like any 6X9 speakers would when mounted in a car, simply because a boat cockpit/deck isn’t acoustically perfect. The sound will fall apart more easily and quickly in the open space of your boat cockpit than inside a car.

These speakers will provide decent sound quality. If you believe in the axiom “you get what you pay for” then the BOSS AUDIO MR690 speakers are for you.

Boss Audio MR690 Specifications
  • Size : 6X9
  • Design : 2-way
  • Sensitivity : 92 dB
  • Power Handling 
    • RMS :  175 watts
    • Peak :   350 watts
  • Frequency range :  60 – 20,000 Hz
  • Top-mount depth :  3-3/8″
  • Impedance : 4 ohm