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Best Marine Subwoofers Reviews

When summer is in full swing what better way to beat the heat than on a boat gliding through the ocean with good friends and good music?

Boating allows you to find relief from the stress of life’s daily hassles and when you add your favorite songs to that experience, it takes the relaxation element of boating to a whole new level.

Great Music is the ideal complement to the sound of the wind and the waves whilst sailing. It’ll add to the escape factor you feel when you’re out on the water with friends or family. But as you’ve probably noticed, that music only sounds as good as the system it’s playing through.

That said, if you want to feel that intense, spine-tingling impact of bass hitting your chest while out sailing, then you need to consider a powerful marine subwoofer (or two … or more!) to complement the speakers on your boat and give your music a sense of depth and immersive feeling.

So, what are the best marine subwoofers of 2021? Let’s find out…

Best Marine Subwoofer Reviews

1. Alpine SWR-M100

Alpine SWR-M100

  • Molded polypropylene woofer
  • Santoprene™ rubber surround
  • Marine-grade Nomex® spider
  • High-strength polypropylene frame
  • Waterproof rubber mounting gasket
  • Suitable for free-air use

Last update on 2023-02-15 / Affiliate links / Images from Amazon Product Advertising API

Size 10″
Frequency range 35-1000 Hz
Power Handling 
  • RMS: 300 Watts
  • Peak: 900 Watts
Sensitivity 86 dB
Top-mounting Depth 5-11/16”
Impedance 4 ohms

Alpine is one of the world’s leading manufacturers of audio, navigational, and electronic automobile products. They’ve been in business for quite a long time and they’ve mastered the art of providing top-notch products for reasonable prices. They offer everything from headunits and amplifiers, to speakers and subwoofers.

The SWR-M100 is one of the best marine subwoofer that Alpine has to offer. This 10 inch marine subwoofer is designed to deliver impressive pounding bass that you can hear and feel. It’s featured with a molded polypropylene cone bonded to Santoprene™ rubber surround which in conjunction with a high-strength polypropylene frame and waterproof rubber mounting gasket allow for consistent bass performance over time. Its airflow management system and CRC motor on the other hand keep the sub running cool, even under heavy load.

The SWR-M100 is a marine certified subwoofer designed to withstand the challenges of the marine environment. It’s certified by the ASTM for fog, salt and UV resistance, which means you can trust it to handle harsh outdoor conditions while producing solid, crisp and clean bass that will even drown wind noise at high speeds.

This marine sub is designed to work equally well in virtually any type of enclosure, be it a sealed or vented enclosure. It’s also suitable for free-air use. It can hit as low as a claimed 36Hz and as far up as 1.5KHz. And as far as power handling is concerned, this marine sub can handle up to 300 watts of power on continuous basis.

2. Bazooka MBTA10250D

Bazooka MBTA10250D

  • Bass Tubes enclosures promote maximum efficiency
  • Optimized for corner loading for maximum bass output
  • Built-in 100-watt amplifier
  • 10 inch dual voice coil subwoofer
  • Salt, fog and UV certified
  • Variable gain control
  • Includes weather-resistant, Velcro-reinforced straps for secure mounting

Last update on 2023-02-22 / Affiliate links / Images from Amazon Product Advertising API

Size 10″
Frequency range 35 – 250 Hz
Power Handling 
  • RMS: 175 Watts
  • Peak: 350 Watts
Sensitivity 104 dB
Enclosure Dimensions 12-1/4″(H) x 10-1/2″(W) x 20-3/4″(D)
Impedance 4 ohms

If you’re looking for an easy “off-the-shelf” marine bass system, Bazooka MBTA10250D is a great option to consider. It’s one of the best marine powered subwoofers out there.

This marine certified 10″ power amplified bass tube will save from the hassle of matching up a subwoofer with a compatible amp and enclosure.

The Bazooka MBTA10250D is fitted with 10″ waterproof woofer powered by a class D amplifier with a power output of 200 watts at 4 ohm and 275 watts at 2 ohm. This sub features a high sensitivity rating of 104 dB and can handle up to 275 watts of power RMS. It can hit as low as 35Hz and as far up as 250 Hz.

This bass system is designed to withstand harsh outdoor conditions. Both the enclosure and the subwoofer are waterproof, therefore, the sub can be mounted nearly anywhere on the boat.

Additionally, this system is featured with plated speaker terminals, stainless steel hardware, UV resistant ported enclosure, and weather-resistant Velcro reinforced mounting straps for holding the system securely in place even in rough waters.

This bass enclosure is designed to round your boat audio system. It’ll add great depth and richness to your music but do not expect huge booming bass.

If I had to pick some criticisms for the Bazooka MBTA10250D, It would be just the price. This marine subwoofer system has a fairly steep price tag. However, considering the fact that it’s a very well made, all-inclusive bass system, I’d say that it’s a great bang for the buck.

3. Polk Audio DB 842 DVC

Polk Audio DB 842 DVC

  • Polypropylene UV-Resistant Cone
  • Santoprene Rubber Surround for extra water protection
  • IP56 Ultra-Marine Rated, dirt and water resistant
  • Tested for salt-fog, UV and humidity
  • Quick-connect wire terminals

Last update on 2023-02-22 / Affiliate links / Images from Amazon Product Advertising API

Size 8″
Frequency range 30 – 200 Hz
Power Handling 
  • RMS: 250 watts
  • Peak: 750 Watts
Sensitivity 84 dB
Top-Mount Depth 3-3/4″
Impedance 4 ohms

Polk Audio is setting quite the example for their competitors and that has earned the brand a lot of credit. With almost 50 years experience in making speakers, the Baltimore-founded company has mastered the art of providing top-notch speakers, soundbars and subwoofers.

The DB 842 DVC is one of Polk Audio’s best marine subwoofers. It’s marine-certified with an IP56 rating (water- and dirt-resistant) and it’s tested for salt-fog, UV and humidity.

This sub’s low-profile design allows it to fit perfectly into even the most shallow of enclosures that take up less space.

Thanks to its resistance to harsh outdoor elements, and low mount profile, this subwoofer can be installed in a wide range of vehicles including car, motorcycles, boats, ATVs — you name it.

The DB 842 DVC 8 inch subwoofer boasts a rigid polypropylene cone coupled with durable Santoprene™ surround built to handle big power over the long run.

Speaking of power, this 8 inch sub can handle up to 250 watts RMS. It boasts 84 dB sensitivity and has a frequency response of 30Hz to 200 Hz. Its dual voice coils allow for flexible wiring configurations for your audio setup.

4. Fusion MS-SW10

Fusion MS-SW10

  • Sealed basket and motor structure
  • Designed for free-air applications
  • ASTM-D4329 UV stable
  • ASTM-B117 salt/fog resistant

Last update on 2023-02-22 / Affiliate links / Images from Amazon Product Advertising API

Size 10″
Frequency range 30 – 2000 Hz
Power Handling 
  • RMS: 130 Watts
  • Peak: 400 Watts
Sensitivity 88 dB
Top-Mount Depth 8-3/4″
Impedance 4 ohms

Fusion is a brand we haven’t come across very much at all. While Fusion might be one of the younger companies in the audio space, it has been able to carve out a name for itself as a serious contender.

The MS-SW10 is one of the best marine subwoofers that Fusion has to offer. This 10 inch sub sports a water resistant design and complies with ASTM standards for UV stability and salt/fog resistance, ensuring sustained high performance even in the extremes of a marine environment. Furthermore, the sub’s frame and grille are featured with an integrated drain channel to allow water to escape from the front of the cone area.

This 10 inch marine subwoofer is suitable for free-air applications (AKA: Infinite baffle). Which means that it doesn’t require being mounted in an enclosure.

The Fusion MS-SW10 boasts 88 dB sensitivity and presents 30Hz to 2kHz frequency response. It can handle up to 130 watts of power on continuous basis and up to 400 watts at peak, giving you all the range and power you could want.

Sound quality wise, this subwoofer has a rich, deep sound with a balanced, energetic bass and a good low-frequency response. We’re not claiming that this subwoofer is going to deliver chest thumping bass, but it’ll add awesome low end sound to your sound system to complement the speakers’ smooth and accurate highs.

All in all, the Fusion MS-SW10 is a great marine subwoofer for the price. All things considered.

5. Rockford Fosgate RM110D4

Size 10″
Frequency range NA
Power Handling 
  • RMS: 200 Watts
  • Peak: 400 Watts
Sensitivity 89 dB
Top-Mount Depth 4.4 in
Impedance 4 ohms

If you frequent any of the popular car audio forums, you’ll notice that the name Rockford Fosgate comes up quite a bit. It’s one of the most trusted name within the car audio industry.

Rockford Fosgate offers everything from speakers and subwoofers to amplifiers and audio processors. Their products seem to hit the sweet spot for a lot of guys out there, and the RM110D4 is no exception. It’s one of the best marine subwoofers that Rockford Fosgate has to offer.

This 10 inch subwoofer is designed for marine watercraft or powersports applications. It features color matched grille and is UV and moisture resistant.

Rockford Fosgate RM110D4 provides 200 watts of continuous power and 400 watts at peak, with large UV and salt-fog resistant Santoprene surrounds supporting a 10″ injection molded mineral filled polypropylene cone. It has a frequency range of 23Hz – 160Hz.

This subwoofer allows for a number of mounting options. It can be mounted in sealed, vented or infinite baffle installations.

6. Lanzar AQTB8

Lanzar AQTB8

  • High-and Low Level Input
  • Green and Red LED Power Status Indicator
  • Remote Level Control
  • Phase Shift Switch : 0 or 180°
  • 0 to +12Db Variable Bass Boost (@ 45Hz)
  • Low Pass Filter (50-150 Hz)
  • Thermal , Short and Overload Protection Circuits

Last update on 2023-02-22 / Affiliate links / Images from Amazon Product Advertising API

Size 8″
Frequency range 50-150 Hz
Power Handling 
  • RMS:  300 Watts
  • Peak: 1,000 Watts
Sensitivity 89 dB
Dimensions 14.5”(D) x 9.5”(W) x 3”(H)
Impedance 4 ohms

If you’re looking for an all-in-one bass solution for your boat, then Lanzar AQTB8 is a decent option to consider. At only 3″ tall, this enclosure will fit into the tightest spots.

Its rigid and resilient body with a pearl white and chrome-like accents give this small bass system a clean, stream-lined, and high-tech professional appearance.

Lanzar AQTB8 is fitted with an 8 inch slim subwoofer that is driven by a 100 watts RMS built-in monoblock amplifier. Its marine coating and water-resistance keeps the rust out and the music playing wherever you decide to install it.

This active marine subwoofer comes with low and high level inputs, remote bass boost level control, adjustable phase controls, and a low-pass filter — so you can customize your listening experience and fine-tune the bass to the exact way you want it.

As with most super-compact powered subwoofers, this Lanzar isn’t going to make your boat shake. What it will do, however, is smoothly enhance the ultra low frequencies that your stock system lacks without taking much space.

7. Bazooka MBT1014

Bazooka MBT1014

  • Ported marine bass tube with 10 inch subwoofer
  • Salt, fog and UV certified
  • Comes with straps for secure mounting

Last update on 2023-02-22 / Affiliate links / Images from Amazon Product Advertising API

Size 10″
Frequency range 39Hz – 1,000Hz
Power Handling 
  • RMS: 100 Watts
  • Peak: 200 Watts
Sensitivity 104 dB
Dimensions 22”(L) x 10.65”(W) x 12.75″(H)
Impedance 4 ohms

Bazooka’s known for building space-saving enclosures that deliver powerful bass, and the bass tube at hand is no exception.

Unlike the Bazooka amplified tube that we listed above, this tube is passive, which means that you need an amplifier to power this subwoofer.

The Bazooka MBT1014 is salt, fog and UV certified. It comes equipped with 10 inch waterproof subwoofer that can handle up to 100 watts RMS. It has a frequency range of 39Hz – 1kHz, and 104 dB sensitivity.

This model’s biggest selling point outside of the powerful bass response is its stylish design that will easily blend with any boat.

With the unit measuring 22″(L) x 12.75″(H) x 10.65″(W) inches and weighing around 20 pounds, you can mount it almost anywhere.

Speaking of mounting, this tube comes with weather-resistant, Velcro-reinforced mounting straps.

8. Kicker KMF10

Kicker KMF10

  • Injection-Molded Polypropylene Cone
  • Co-molded Santoprene® Surround
  • UniPlate™ Back Plate And Pole Piece
  • Thick Tinsel Leads
  • Large Ceramic Magnet
  • Polymer Basket Resists Corrosion
  • Protective Terminal Cap
  • Certified for UV and Salt/Fog Exposure

Last update on 2023-02-22 / Affiliate links / Images from Amazon Product Advertising API

Size 10″
Frequency range 30Hz – 500Hz
Power Handling 
  • RMS: 175 Watts
  • Peak: 350 Watts
Sensitivity NA
Top-mount Depth 5″
Impedance 4 ohms

If you’ve ever taken any interest in car audio systems, Kicker is a brand you likely recognize, and for good reason. It’s generally viewed as one of the top companies in the space.

When it comes to car subwoofers, Kicker has really secured its place in the industry. Kicker’s subs seem to be well-liked, and the KMF10 is no exception.

This 10 inch subwoofer is featured with injection-molded polypropylene cone supported by co-molded Santoprene® surround. It has an impressive frequency range of 30Hz to 500Hz, and can handle up to 175 watts RMS.

This subwoofer comes with a completely sealed motor structure and sealed terminal cover, which makes it splash- and corrosion-proof for long lasting performance. It’s compatible with Kicker’s subwoofer grille with built-in LED lighting (sold separately) which allows for seven selectable LED colors to match your boats theme!

The biggest thing with the Kicker KMF10 is that it’s suitable for free air applications, which means it doesn’t need an enclosure.

9. Clarion CMG2512W

Clarion CMG2512W

  • Mica-injection polypropylene cone with Santoprene rubber surround
  • High-impact Centrex grill and frame
  • Certified for UV and Salt/Fog Exposure
  • Liquid drainage system
  • Rubber mounting gasket
  • Gold plated speaker terminals
  • Suitable for sealed or ported enclosures or infinite baffle (free air) applications

Last update on 2023-02-22 / Affiliate links / Images from Amazon Product Advertising API

Size 10″
Frequency range 36 – 1,500 Hz
Power Handling 
  • RMS: 150 Watts
  • Peak: 350 Watts
Sensitivity 85 dB
Top-mounting Depth 4-3/16″
Impedance 4 ohms

Clarion is another top-rated, authoritative producers of in-car entertainment systems. They’ve been around for decades and have earned an outstanding reputation for building quality audio components.

If you’re on a strict-budget and looking for a reasonably priced subwoofer for your boat, Clarion CMG2512W 10″ marine subwoofer is a great option to consider. It’s designed to round out your boat audio system without going over the top.

Clarion CMG2512W was carefully designed and tested rigorously to ensure that it’s ready to rock, even the extremes of a marine environment. This sub is featured with a rugged, waterproof polypropylene cone supported with Santoprene rubber surround that can stands up to humidity and punishing UV rays.

This marine sub features a liquid drainage system that’s meant to prevent the water from building up and causing corrosion. Additionally, its high-impact plastic shell protects the basket and magnet, while the white plastic grille looks will blend well with most boats out there.

Clarion CMG2512W subwoofer boasts a sensitivity rating of 90 dB and can handle up to 150 watts RMS. It can hit as low as a claimed 60Hz and as far up as 20kHz. This subwoofer can be used in both sealed or ported enclosures. It can also be used in infinite baffle (free air) applications.

Undoubtedly, this 10″ marine subwoofer isn’t going to turn your boat into a rolling thunderstorm of bass, however, it’ll add nice depth and warmth to your music.

The biggest flaw to the Clarion CMG2512W is its narrow frequency range. While most marine subs can reach as low as 20-something Hz, this subwoofer can only hit 60Hz.

10. JL Audio MX10IB3-CG-WH

JL Audio MX10IB3-CG-WH

  • Synthetic rubber surround with UV inhibitors
  • Marine grade progressive roll synthetic fiber spider
  • Gold-Plated connection terminals
  • Corrosion & UV-resistant centrex polymer baskets
  • Marine-grade synthetic fiber spider
  • Suitable for sealed boxes and free air applications

Last update on 2023-02-22 / Affiliate links / Images from Amazon Product Advertising API

Size 10″
Frequency range 36 – 1,500 Hz
Power Handling 
  • RMS: 175 Watts
  • Peak: 350 Watts
Sensitivity 87.23 dB
Top-mounting Depth 5-1/8″
Impedance 4 ohms

JL Audio acquired a solid a reputation among audiophiles, and for good reason. They offer quality subwoofers that can produce accurate bass at every level.

The JL Audio MX10IB3-CG-WH is what you can get if you’re willing to shell out some serious dough. It’s one of the best 10 inch marine subwoofer that you can buy.

The subwoofer at hand is built from the ground up for the marine environment. It sports a corrosion-resistant Centrex® polymer basket that surrounds the sub’s internal structure for extra protection.

Additionally, It’s featured with a marine-grade synthetic fiber spider and injection-molded mica-filled polypropylene woofer which is supported with synthetic rubber surround for optimal performance.

This versatile subwoofer is designed to be mounted in sealed enclosures, but it can also be used in free-air applications, so you can mount it directly into a bulkhead if there’s no space for an enclosure.

The JL Audio MX10IB3-CG-WH boasts a sensitivity rating of 87dB and can handle up to 175 watts of power on continuous basis. Its motor structure allows for extended cone movement, which means that you’ll hear bass that’s loud and deep, yet accurate and smooth.

The low-end bass on this 10 inch marine sub is crisp and round. Unless you mount it on a ported enclosure to get that big and punchy bass sound, you won’t hear any distortion.

Alex Brown

Hey There, my name is Alex Brown, I'm an LA-based sound engineer with over 10 years experience installing, troubleshooting, and repairing commercial, automotive, and household sound equipment. I've installed highly competitive car audio systems, and everything from navigation systems to full car stereo systems, remote starters, alarms and beyond. I enjoy creating solutions and simplifying everyday needs. I also love helping people get great sounding gear, thereby, saving the world from bad sound one customer at a time.

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