8 Best Marine Subwoofers In 2021

The Fusion MS-SW10 marine subwoofer combines a 60-ounce magnet with a 2-inch voice coil to deliver a thunderous bass that you can feel throughout your body. Measuring 10 inches in diameter and with a depth of 4.5 inches, this model will be easy to install on any boat. The casing is made of marine-grade plastic, allowing it to withstand long exposure to water and sunlight. 

The peak power output for Fusion MS-SW10 is 400 watts but the RMS is a much more interesting metric here. At 200 watts, it guarantees smooth and powerful bass lines. To additionally boost performance, you also have an option of pairing this unit with Fusion’s FM-402 amplifier. All of this, combined with its good price, is why we placed the MS-SW10 subwoofer on top of the list.

If you’re after the most powerful sound, Rockville MS10LW Free Air will knock you off your feet. This top rated boat subwoofer has a staggering 2400 watts of peak output and 600 watts RMS, ranking as the loudest model on our list. On top of this, Rockville MS10LW also has blue LEDs built in that make it look fantastic during the night. 

For improved durability, the subwoofer is made of molded ABS plastic. This not only makes it virtually unbreakable but also provides exceptional water protection to the sensitive elements inside. When talking about interesting technicals details, the woofer has a double-stacked 80oz magnet inside. Overall, it’s a really good system that is guaranteed to exceed your expectations.

For those of you on a tighter budget, the Pyle PLMRW8 Hydra marine powered subwoofer is the best buy option. For a very reasonable price, this great model delivers 400 watts of raw power that will impress even pickier customers. Besides the 8-inch version we’re reviewing, Pyle also sells the Hydra in 10 and 12-inch versions if you’re after even more power.

Due to its wide frequency range (35 Hz to 3.5kHz), the Pyle Hydra subwoofer can reproduce incredibly crisp and clear sound. Furthermore, its 40-ounce magnetic structure combines with a 1.5-inch coil to stabilize the performance. Lastly, the casing is made of waterproof plastic, while the smaller dimensions make installation very simple.

Bazooka MBT1014 subs for boats come with mounting straps that make securing them on your boat very easy. The ten-inch bass tube works great with any existing on-board speaker system and enriches the sound. While it’s not the loudest on the list (200W), it’s loud enough to hear perfectly well on the open water even with all the wind and splashing.

A detail we particularly like about this model is that it comes with stainless steel hardware that won’t corrode or get damaged from exposure to saltwater. The plastic casing is tough and certified for outdoor use, even in direct sunlight. And, if you feel the 10-inch model is too large, you can also get the MBT1014 woofer with an 8-inch diameter.

This is another product from Bazooka that is going to be able to pump out a high level of bass. It is available in sizes of either 8 or 10 inches and the ported marine quality bass tube is going to give you a high level of sound quality and a high level of durability.

It has 150 watts of power handling which should be good enough for most boat applications and that sound is going to be able to carry very far. The subwoofer is highly weather resistant, giving you confidence that it is not going to fail.

Due to its unusual design, Bazooka MBTA10250D marine grade subwoofer doesn’t require a classic installation. Instead, it comes with Velcro-reinforced mounting straps that allow you to hang it anywhere you want. The model comes in two sizes (8 and 10 inches), and you can get it with two different power ratings (100 and 250W) based on what you need on the boat.

Much like the other Bazooka model we talked about, MBTA10250D comes with stainless steel hardware that won’t corrode when exposed to saltwater. Lastly, the model is also UV certified, meaning that the plastic won’t fade or deteriorate if it stays in the sun.

The best thing about the Kenwood P-WD250MRW subwoofer is that it comes together with a Kac-210mr amplifier included. Because of this, one of the best marine subwoofers for clean and crisp bass. Depending on the settings, this waterproof marine subwoofer can deliver between 50 and 200W of RMS power.

One more interesting detail about this model is that it comes with two voice coils that help to improve reliability. All the elements of the casing are made of pearl mica polyethylene, providing resistance to UV rays as well as physical damage. As a bonus, this marine 10 inch subwoofer also has a synthetic rubber gasket that creates a seal and completely protects the elements inside from splashing.

Clarion CMG2512W subwoofer manages to find a balance between price and quality, resulting in high popularity among boaters. For a very reasonable price, you’ll get a subwoofer for boat that can produce up to 350 watts peak power (150 watts RMS). It comes with a single voice coil and has an impedance rating of 4 ohms.

The material quality of the Clarion CMG2512W subwoofer is really good and the mica-injected polypropylene cone can last for a long time. Additionally, all the gaps are sealed, meaning that water can’t damage it. The unit is fairly easy to install on your own but, if you are not sure how, the manufacturer also offers professional installation.