JL Audio M3 10-inch Marine Subwoofer for Infinite Baffle – Gloss White Classic Grille (4 Ω)

Legendary Performance. Timeless Classic Styling. Space-Saving Infinite Baffle Engineering.

Bring rich, deep low-frequency punch to your vessel without cluttering your deck or breaking the bank. The JL Audio M3-10IB-C-Gw-4 is a high-performance 10-inch marine subwoofer engineered by the leaders in offshore audio to deliver tight sub-bass extension in an elegant, traditionally styled footprint.

Bypassing the loud, aggressive look of standard sport speakers, this model features an understated, horizontal-slat Gloss White Classic Grille. It is designed to match clean OEM lines, luxury cruisers, and premium center consoles where a factory-pristine aesthetic is a priority. Optimized as a dedicated Infinite Baffle (IB) driver, it requires no custom subwoofer enclosure box. Instead, it utilizes the large volume of open air inside your boat's existing bulkheads, seat bases, or side gunwales to act as a giant natural cabinet, preserving your valuable under-seat dry storage space.

Key Features

• Timeless Classic Styling: The clean, horizontal-slat gloss white grille blends seamlessly into standard factory fiberglass gelcoats and traditional marine vinyl layouts for an understated look.

• Infinite Baffle (IB) Architecture: Purpose-built to perform perfectly without a bulky sub box. Mount it directly into an open boat panel to experience deep, clean bass while keeping your onboard storage completely clear.

• Legendary JL Audio Value: Built to the same rigorous outdoor acoustic standards as flagship lines, the M3 series serves up incredible linear excursion power and tight tracking at an accessible value tier.

• True Marine® Certified Construction: Fully armored against harsh marine environments. Utilizing advanced UV-resistant polymer baskets and marine-grade synthetic fibers, the M3 line offers absolute defense against saltwater corrosion, moisture ingress, and intense sun exposure.

Technical Specifications

Dimensions & Mounting Information

• Outer Diameter: 10.75 in / 273 mm

• Mounting Hole Diameter: 8.875 in / 225 mm

• Mounting Depth: 5.12 in / 130 mm

• Driver Displacement: 0.050 cu ft / 1.42 L

Simplified Two-Wire Install: Because this model features the clean, non-LED grille option, installation is entirely straightforward. There are no extra lighting controllers or secondary 12V DC power lines required—just connect your positive and negative speaker leads directly to your marine amplifier channel.

What’s in the Box? Sold individually (one 10-inch M3 infinite baffle marine subwoofer with an integrated classic gloss white grille), premium marine-grade stainless steel mounting hardware, and a precision layout template.