🔊 JL Audio M3-770X-SGW Marine Speaker – Big Sound, Classic White Style
The JL Audio M3-770X-SGW Marine Speaker are engineered to bring high-performance sound to your boat with a clean, timeless look. These 7.7-inch speakers provide a larger surface area than standard 6.5" speakers, giving you louder and deeper audio coverage in open spaces.
Finished with a Gloss White Sport Grille, these marine speaker blend durability, clean design, and JL Audio’s industry-leading audio quality into one product. Designed to endure sun, spray, and salt, they are built for life on the water.
🌊 Designed to Handle the Marine Environment
Boating environments are tough. That’s why JL Audio built the M3-770X-SGW to resist extreme conditions. These marine speakers are certified to ASTM B117 for salt-fog resistance and ASTM D4329 for UV protection.
The rugged polymer basket and corrosion-resistant terminals prevent rust and degradation. Stainless steel mounting hardware ensures long-lasting performance in coastal or freshwater settings.
These speakers are fully water-resistant but not submersible, making them ideal for tower mounts, decks, or helm positions.
🔉 Loud and Clear Audio That Travels
Larger than typical marine speakers, the 7.7-inch M3-770X offers better projection, louder volume, and more dynamic bass. The woofer cone pushes out strong midbass while the 0.75-inch silk dome tweeter delivers high-end sparkle.
Each speaker handles 70 watts RMS and 225 watts peak power. They work with most marine head units but excel when paired with an amplifier.
Whether you're anchored or moving at high speeds, these speakers deliver clear, immersive sound.
⚙️ Easy Installation with Sporty Looks
The M3-770X-SGW fits standard 7.7-inch marine speaker cutouts. A shallow mounting depth allows installation in tight locations such as consoles, coamings, or towers.
The Gloss White Sport Grille (SGW) gives your system a stylish, uniform appearance. It matches well with white gel coat and modern boat interiors.
Speaker terminals are concealed behind the frame for a clean finish.
🔧 Pro Installation by Audio Jam
Audio Jam offers complete marine audio solutions in Bear, Delaware. Our trained technicians install every speaker with stainless hardware and marine-grade wire.
We test for phase alignment, gain balance, and proper polarity. Our installs protect against corrosion and vibration.
📍 Audio Jam
227 Governor Place, Bear, DE 19701
📞 302-832-2868
🕒 Monday – Saturday, 10 AM – 6 PM
🔁 Expand Your System with JL Audio
These marine speakers work great alone or as part of a complete JL Audio marine system. Pair them with subwoofers, tower speakers, and amplifiers for multi-zone setups.
We recommend viewing our full Marine Speakers Collection to find matching components.
Our team can help design the right system for your boat’s size and layout.
☀️ Protect Your Gear with Window Tint
Marine electronics degrade faster under sun and heat. Applying window tint reduces UV exposure and prolongs speaker life.
Tinting also cools the cabin and helps prevent fading of seats, panels, and speaker cones. For expert installation, visit Window Tint Delaware. Their marine-grade film stands up to the coastal climate.
🎵 Tuned for Life on the Water
JL Audio designs every marine speaker to sound great in outdoor environments. The M3-770X-SGW’s wide dispersion angle and higher efficiency ensure great coverage.
You’ll enjoy rich, balanced sound whether you’re fishing, cruising, or docked at sunset.
These speakers deliver premium audio with a subtle visual presence.
❓ Frequently Asked Questions (FAQ)
Q1: Can I power these speakers without an amplifier?
Yes. They perform well on head-unit power but benefit from external amplification.
Q2: Do these speakers resist water and salt spray?
Yes. They are marine-rated for full outdoor exposure and meet salt-fog and UV-resistance standards.
Q3: Will they fit in 6.5" speaker openings?
No. These require a 7.7-inch cutout. Measure your existing holes before purchasing.
