MB Quart Polaris Off-Road Grade Audio
MB Quart Bobcat Audio

Nautic Subwoofers

Water Party
The MB Quart Nautic subwoofers are engineered to deliver great sounding, deep; thick bass. Every component in the Nautic subs has been rigorously tested to resist the environment of fresh and salt water, including air exposure which can lead to rust. The surrounds, cones and terminals are all treated to resist the harsh marine environment. Nautic subwoofers are engineered for free air (no box) applications such as the bench seat or hull. Or, they will also perform flawlessly in sealed enclosures. Check your cleats and prepare for the Water Party!
Life Shield
When you see this Life Shield badge on an MB Quart product, you can rest assured you are choosing a product that has been designed and tested against the elements. Whether it’s waterproof, dust proof, snow proof or shock proof, you will know that this product has been built to handle the outdoors.
Nautic Subwoofers
Sub Marine
The Nautic marine subwoofers are ready to “Hit It!” Nautic subwoofers are available in 10” standard depth or shallow.
Nautic Subwoofers
Long Life
All connectors on the Nautic line of speakers and subwoofers are treated to resist the elements. Push & Insert style terminals assure easy installation.
Nautic Subwoofers
Critical Seals
The Marine environment is brutal. All MB Quart Nautic marine speakers and subwoofers voice coil assemblies are sealed against sea spray and UV protected.
Nautic Subwoofers
Shallow Depth
Sometimes space is very limited for a subwoofer. MB Quart engineered the Nautic NW1-254 subwoofers to only require 2.8” (71.9mm) maxximum mounting depth.
Nautic Subwoofers
Long Life
Nautic marine speakers and subwoofers grills and baskets all utilize a UV resistant fiber reinforced ABS basket and include V4A certified stainless steel mounting screws.
Nautic Subwoofers
For the illuminated models “L” there is limitless color choices. Optional N1-RC required for control of lighting systems and to sync multiple illuminated speakers.
To create the perfect system, choose from the following MB Quart categories to power your system:
Compression Horn Towers
Compression Horns
Wake Tower Speakers
Wake Towers
Waterproof Speakers
Waterproof Speakers
Source Units
Source Units
Marine Amplifiers
Marine Amplifiers
Powersports Amplifiers
Powersports Amplifiers

NPW-254 Nautic Premium Subwoofer

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Part#: NPW-254 | MSRP: $249.99


MB Quart Nautic Premium waterproof 10 Inch marine speakers (black) with 3 grill colors included.
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Regular Price: $149.99

Special Price: $119.99


Part #: NPW-254 | SKU: 806576229940 | Category: Nautic Subwoofers
The award winning MB Quart Nautic Premium waterproof marine certified, 10 inch shallow mount subwoofer for boat installations. Sold with 3 color grill options included in each box.

The Premium line offers high tech waterproof protection to assure years of great music and protection from the elements along with the personalization of changing the color personality of the speaker with 3 different inserts.


Part #: NPW-254 | SKU: 806576229940 | Category: Nautic Subwoofers
  • Configuration
  • Voice Coils
  • Impedance (ohms)
    1 x 4
  • RMS Power Handling (watts)
  • Peak Power Handling (watts)
  • Cut-Out (in)
  • Mounting Depth (in)
  • Outside Diameter (in)
  • Mounting Height with Grill and Gasket (in)
  • Sensitivity (1 watt/1 meter)
  • Enclosure Recommendation
    The Nautic subwoofers are designed for infinite baffle operation so that it can be installed in a variety of locations, without the need for a dedicated enclosure. If an enclosure is used, 0.45 ft³ is the minimum recommended volume.

System Includes

Part #: NPW-254 | SKU: 806576229940 | Category: Nautic Subwoofers
More info in development & coming soon!

Features & Benefits

Part #: NPW-254 | SKU: 806576229940 | Category: Nautic Subwoofers
  • Marine Grade Protection/IPX Rating
    LIFE SHIELD: Protected for water and dirt. UV protected against sun fade.
    72 Hour UVA Burn In Certified. IPX68 rated.
  • Subwoofer Terminal Type
    Real 10 Karat Gold plated, water resistant connectors provide protection against rust and corrosion.
  • Woofer Configuration
    Round, easy to choose a prefabricated enclosure or convenient location on the boat.
  • Surround/Cone Coupling
    UV resistant, Butyl rubber surround is coupled to a flat-piston rigid dome. This configuration, allows the subwoofer to remain shallow and produce large bass frequencies.
  • Gasket
    Molded Polymer Sealing gasket is utilized to keep the subwoofer isolated from the mounting surface and improve protection from water intrusion.
  • ​Voice Coil/Former Assembly
    2.5 inch high temperature voice coil and former for high thermal stability in small enclosure volumes where the internal box temperatures can rob you of performance. Voice coil is high temperature copper, wound on a aluminum former which allows the voice coil to handle more power by dissipating heat faster than other materials while remaining light in weight.
  • Spider
    An Aramid fiber composite spider is used to stabilize the cone and voice coil in all musical situations. Armid fibers do not degrade over time and are not susceptible to temperature swings.
  • Frame/Venting
    Composite (ASA + Fiberglass) Frames are incredible strong and lightweight, but most important for music they are inert, meaning they have no resonance frequency, this assures all music and minimal distortion.
  • Motor
    The subwoofer is engineered with a High-Energy Ferrite Magnet which allows the magnetic energy to react quickly making the bass sound fast and tight.
  • Grills
    PERSONALIZED FINISH: The Nautic Premium marine and off-road vehicle waterproof subwoofers are finished in a hardened composite with their color inspired by the black sand beaches of Kaimu Hawaii. Each subwoofer includes three different grills. Kaimu Black, Miami Silver and Bahama White. Many enthusiasts use the white insert to lightly sand and paint to match their personal style and vehicle.


Part #: NPW-254 | SKU: 806576229940 | Category: Nautic Subwoofers
More info in development & coming soon!


Part #: NPW-254 | SKU: 806576229940 | Category: Nautic Subwoofers
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