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

Legendary Sub-Bass Performance. Sporty Styling. High-Value Infinite Baffle Architecture.

Add deep, impactful low-frequency extension to your boat without giving up valuable dry storage space or stretching your budget. The JL Audio M3-10IB-S-Gw-4 is a high-performance 10-inch marine subwoofer purpose-engineered by the undisputed leaders in open-water audio to deliver rich, tight sub-bass punch in a highly efficient design.

Featuring an athletic, multi-spoke Gloss White Sports Grille, this driver seamlessly matches modern sport boats, center consoles, and standard white fiberglass decks. As a dedicated Infinite Baffle (IB) driver, it is acoustically optimized to operate perfectly without a custom subwoofer box. Instead, it utilizes the open air inside your boat's bulkheads, seat bases, or side panels to act as a giant natural speaker cabinet, reducing installation weight, time, and custom fabrication expenses.

Key Features

• Infinite Baffle (IB) Optimization: Purpose-built to run flawlessly without a dedicated enclosure box. Mount it straight into an open panel to feel rich, clean bass while keeping your under-seat storage areas completely free.

• Legendary JL Audio Value: Engineered alongside the flagship lines, the M3 series delivers incredible linear excursion power and tight low-end tracking at an accessible, high-value performance tier.

• Athletic Sports Grille Look: The aggressive, split-spoke gloss white layout coordinates perfectly with factory boat styling, wake tower pods, and crisp marine vinyl interiors.

• True Marine® Certified Durability: Fully armored against the open sea. Utilizing advanced UV-resistant polymer baskets and marine-grade synthetic fibers, the M3 line offers complete defense against saltwater corrosion, moisture ingress, and sun fading.

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 non-LED grille option, installation is incredibly simple. 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 gloss white sports grille), premium marine-grade stainless steel mounting screws, and a precision layout template.