JL Audio M6 8.8-inch Marine Coaxial Speakers – Titanium Sports Grille (Pair)

The Heavyweight Champion of Marine Audio. Subwoofer-Level Bass. Cutting-Edge Titanium Aesthetic.

When standard marine sound packages fail to satisfy, break through the boundaries of open-water performance. The JL Audio M6-880X-S-GmTi speaker system represents the largest, most acoustically dominant coaxial driver in the flagship M6 lineup. Engineered specifically for high-speed offshore center consoles, luxury cruisers, and wake arches, these massive 8.8-inch speakers provide a full-range audio performance that rivals standalone marine subwoofers—all while maintaining pristine high-frequency vocal clarity.

By stepping up to the colossal 8.8-inch format, you gain more than double the cone surface area of a traditional 6.5-inch speaker. This physical advantage moves massive volumes of air, delivering an enormous boost in efficiency, longer acoustic throw, and a deep, room-filling soundstage that effortlessly punches through intense engine hum, high-speed wind, and crashing waves. Ditching traditional white styling, the dual-tone titanium sports design features dark metallic spokes and a gunmetal frame that perfectly accents carbon-fiber dashes, charcoal upholstery, and modern gelcoats.

Key Features

• Colossal 8.8" Flagship Footprint: The ultra-oversized cone format punches out hard-hitting mid-bass and smooth low-end extension down to 38 Hz, completely redefining the audio limits of an open cockpit or wake tower without requiring a dedicated subwoofer.

• High-Tech Titanium Sport Design: The multi-spoke metallic titanium finish provides a sporty, custom look that elevates the appearance of tower pods, arches, and high-performance center consoles.

• Oversized Reference 1.25-inch Silk Dome Tweeters: To perfectly balance the massive woofer, the M6-880X features a treated, reference-quality 1.25-inch pure silk dome tweeter—the largest in the marine industry. It serves up silky-smooth, crystal-clear high frequencies that stay perfectly detailed even at competition volumes.

• True Marine® Certified Construction: Meticulously engineered using advanced marine-grade polymer baskets, synthetic fibers, and completely sealed internal crossover networks to defend against saltwater corrosion, moisture ingress, and rough-sea hull vibrations.

• Infinite Baffle Mastery: Purpose-built to thrive without a dedicated enclosure. These drivers utilize the large volume of open air inside your boat's bulkheads, gunwales, or wake towers to act as a giant natural speaker box for deep, distortion-free sound.

Technical Specifications

Dimensions & Mounting Information

• Outer Diameter: 8.80 in / 224 mm

• Mounting Hole Diameter: 7.375 in / 187 mm

• Mounting Depth: 5.00 in / 127 mm

• Tweeter Protrusion: 1.35 in / 34 mm (beyond the grille face)

Installation Note: Because of their massive 8.8-inch diameter and 5-inch mounting depth, verify your panel or tower pod clearance before cutting speaker holes.

What’s in the Box? Sold as a pair (two flagship 8.8-inch marine coaxial speakers with integrated titanium sports grilles), heavy-duty marine-grade stainless steel mounting hardware, and precision layout templates.