JL Audio M3 7.7 inch Speakers White Sport Grill
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JL Audio M3 7.7-inch Marine Coaxial Speakers – Gloss White Sports Grille (Pair)
Aggressive Styling Meets Massive Marine Sound.
Give your boat a modern, high-performance edge. The JL Audio M3-770X-S-Gw speaker system takes the incredible acoustic power of the oversized 7.7-inch format and wraps it in a sleek, split-spoke Sports Grille design.
By upgrading to a 7.7-inch format over standard 6.5-inch marine speakers, you gain a massive boost in cone surface area. This extra size moves significantly more air, delivering enhanced efficiency, cleaner mid-range output, and deep, punchy bass that easily cuts through high winds, engine hum, and crashing waves.
Key Features
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Oversized 7.7-inch Powerhouse: Generates substantially more bass and higher maximum volume than standard marine speakers, giving you a full-bodied sound stage at high speeds.
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Sporty Split-Spoke Design: The multi-spoke, gloss white sports grille adds a bold, athletic look to your sleek center console, sports arch, or wake tower.
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Infinite Baffle Precision: Specially engineered to perform at their peak without a dedicated speaker enclosure. They use the large open air spaces inside your boat's bulkheads or gunwales to produce deep, natural low-end bass.
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Marine-Grade Silk Dome Tweeters: Equipped with a 0.75-inch pure silk dome tweeter treated to resist intense UV rays and moisture. Silk provides smooth, non-fatiguing high frequencies, so your music sounds incredibly detailed without any harshness.
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True Marine® Certified Integrity: Engineered to survive continuous exposure to harsh saltwater spray, extreme sun, and high-vibration boat hulls.
Technical Specifications
| Feature | Specification |
| Speaker Size | 7.7 in / 196 mm |
| System Configuration | Coaxial (2-Way) |
| Continuous Power Handling (RMS) | 70 Watts |
| Recommended Amplifier Power | 20 - 100 Watts per channel |
| System Efficiency | 90.5 dB @ 1W / 1m |
| Nominal Impedance | 4 Ohms |
| Frequency Response | 45 Hz - 25 KHz (± 3 dB) |
Dimensions & Mounting Information
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Outer Diameter: 7.70 in / 196 mm
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Mounting Hole Diameter: 6.25 in / 159 mm
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Mounting Depth: 3.15 in / 80 mm
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Tweeter Protrusion: 0.60 in / 15 mm (beyond the grille face)
What’s in the Box? Sold as a pair (two 7.7-inch speakers with integrated gloss white sports grilles), marine-grade stainless steel mounting hardware, and installation templates.