JL Audio M3-10IB-S-GW-i-4 10" Infinite Baffle Marine Subwoofer - White RGB LED

Pure Marine Bass Power – JL Audio M3-10IB-S-GW-i-4 Subwoofer

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Introduction

The JL Audio M3-10IB-S-GW-i-4 10-inch marine subwoofer is built to bring deep, distortion-free bass to your boat’s sound system without the need for an enclosure. As part of JL Audio’s proven M3 Series, this model delivers impactful low frequencies, smart styling, and legendary durability, all in a design optimized for open-air, infinite baffle use. With its glossy white “Sport” grille and saltwater-rated construction, it’s the ideal upgrade for boaters who want to feel every beat while riding the waves.

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Infinite Baffle Design for Easy Open-Air Installation

Unlike enclosed subwoofers, the M3-10IB-S-GW-i-4 is optimized for infinite baffle (free air) mounting, which means you can install it directly into your boat’s panel or bulkhead — no box required. This design makes it ideal for marine environments where space and air volume are limited, yet performance expectations remain high. You get tight, controlled bass response without sacrificing valuable storage or interior space.

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Marine-Grade Materials for Saltwater and Sun

JL Audio has engineered the M3-10IB-S-GW-i-4 to handle life on the water. From its UV-resistant injection-molded polymer basket to its marine-tested motor assembly and synthetic fiber spider, every component is selected for long-term resistance to salt, spray, and sunlight. The gloss white Sport-style grille is not only durable but gives your boat a sleek, premium appearance while staying cool under the sun.

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Strong, Efficient Output on Limited Power

Designed with marine systems in mind, the M3-10IB-S-GW-i-4 delivers powerful performance even with modest amplifier power. Its 4-ohm single voice coil ensures easy integration with most marine amps, and its 250 watts RMS power handling means it hits hard without distortion. Whether you're parked in the marina or flying across open water, this subwoofer delivers rich bass you can feel.

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Clean, Stylish Sport Grille Design

The included Sport-style white grille is more than just eye candy. It’s crafted to withstand UV rays and corrosion while maintaining its sleek look season after season. Designed to complement JL Audio’s full line of M3 speakers, it ensures your system not only sounds amazing but looks polished and cohesive too.

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Built Tough for Real Marine Duty

Like all JL Audio marine subwoofers, the M3-10IB-S-GW-i-4 is IP65-rated and marine-certified, assembled in the USA, and built for high humidity, vibration, salt exposure, and UV abuse. It’s a trusted solution for anyone who needs serious bass in a boat audio system that’s exposed to real-world marine conditions.

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Key Features

• 10-Inch Infinite Baffle Marine Subwoofer – Built for open-air installations with no enclosure needed.

• Single 4-Ohm Voice Coil – Compatible with most marine amplifiers for easy integration.

• 250W RMS Power Handling – Strong, clean bass from a compact, efficient design.

• Gloss White Sport Grille – UV-stable, corrosion-resistant, and visually stunning.

• Marine-Grade Build – Withstands saltwater, sun, and vibration for years of use.

• Made in the USA – Designed and built in JL Audio’s Miramar, Florida facility.

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Why Choose the JL Audio M3-10IB-S-GW-i-4?

If you want rich, powerful bass that withstands the marine elements without taking up space, the JL Audio M3-10IB-S-GW-i-4 is your go-to subwoofer. With its infinite baffle design, clean white sport grille, and rugged construction, this sub is ideal for a wide range of marine applications — from center consoles and pontoons to yachts. It delivers real JL Audio performance in a practical, reliable format designed to keep the party going on every voyage.

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What’s in the Box?

• 1 x JL Audio M3-10IB-S-GW-i-4 10-Inch Marine Subwoofer

• 1 x Gloss White “Sport” Grille (pre-installed)

• Mounting Hardware Kit

• User Manual

• JL Audio Decal

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Specifications

• Subwoofer Size: 10 inches

• Voice Coil: Single 4-ohm

• Power Handling (RMS): 250 watts

• Recommended Amp Power: 75 – 250 watts RMS

• Mounting Depth: 5.12 inches (130 mm)

• Cutout Diameter: 8.875 inches (225 mm)

• Free Air Capable: Yes (infinite baffle design)

• Grille Style: Gloss White “Sport”

• Weather Rating: UV and Saltwater-Resistant (Marine Certified)

• Displacement: 0.052 cu. ft.

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FAQs

Is the M3-10IB-S-GW-i-4 a free-air subwoofer?

• Yes, it is specifically designed for infinite baffle applications, meaning it works best without a dedicated subwoofer box.

Can I install this in a saltwater environment?

• Absolutely! It’s built with marine-grade materials that resist corrosion, UV rays, and moisture.

What amplifier should I pair this sub with?

• A marine amplifier delivering 75 to 250 watts RMS at 4 ohms, such as JL Audio’s M-series or XDM amps, is ideal.

Is this subwoofer sold as a pair?

• No, the M3-10IB-S-GW-i-4 is sold individually — one subwoofer per box.

Does this sub come with a grille?

• Yes, it includes a pre-installed gloss white Sport grille, which is UV-resistant and durable.

Can I mix this with other JL Audio M3 speakers?

• Yes! It’s designed to perfectly complement JL Audio’s M3 coaxial marine speakers for a consistent system look and sound.