JL Audio M3 7.7-inch Marine Coaxial Speakers – Gunmetal Sports Grille with RGB LED Lighting (Pair)

Maximum Sound Footprint. Stealth Metallic Finish. Striking Night Ambiance.

Command the open water with unmatched acoustic punch and cutting-edge marine style. The JL Audio M3-770X-S-Gm-I speaker system takes the massive performance of the oversized 7.7-inch format and supercharges it with a high-end Gunmetal Sports Grille and integrated multi-color RGB LED lighting.

If you are looking to move past traditional plain white boat speakers, these metallic, split-spoke sports grilles perfectly accent charcoal dashes, dark hull wraps, and modern grey marine vinyl. Best of all, they back up their premium looks with incredible acoustic engineering. The larger 7.7-inch cone surface area moves substantially more air than standard 6.5-inch models, delivering higher efficiency, louder maximum volume, and deep, hard-hitting mid-bass that easily cuts through high-speed wind, engine roar, and hull vibration.

Key Features

• Oversized 7.7-inch Drivers: Moves significantly more air to deliver robust low-end bass and clean, powerful audio that standard marine speakers simply cannot replicate.

• Built-In RGB LED Illumination: Multi-color LED lighting is masterfully integrated into the sport-spoke grille structure, casting a smooth, radiant glow through the woofer cone to create an unforgettable evening vibe on deck.

• Premium Gunmetal Finish: The split-spoke sports grille sports a dark metallic gunmetal shade, offering a custom, high-end look for modern center consoles, sport arches, and wake towers.

• Infinite Baffle Operation: Purpose-engineered to deliver deep bass without needing a dedicated enclosure. These speakers use the large volume of air inside your vessel’s bulkheads or gunwales to maximize acoustic energy.

• Marine-Grade Silk Dome Tweeters: Equipped with a treated 0.75-inch pure silk dome tweeter. It provides detailed, highly accurate high frequencies that sound smooth and fatigue-free, even during long, loud days on the water.

• True Marine® Certified Construction: Meticulously engineered from marine-grade materials to easily endure years of salt fog, pounding waves, high humidity, and intense UV exposure without fading or degrading.

Technical Specifications

Dimensions & Mounting Information

• Outer Diameter: 7.70 in / 196 mm

• Mounting Hole Diameter: 6.25 in / 159 mm

• Mounting Depth: 3.15 in / 80 mm

• Tweeter Protrusion: 0.60 in / 15 mm (beyond the grille face)

Installation Note: LED functionality requires a separate 12V DC power connection. For complete multi-color control, color cycling, and lighting effect programming, we highly recommend pairing these speakers with a dedicated marine lighting controller, such as the JL Audio MLC-RW (sold separately).

What’s in the Box? Sold as a pair (two 7.7-inch marine speakers with integrated gunmetal sport grilles and LED illumination), marine-grade stainless steel mounting hardware, and detailed cutout templates.