JL Audio M3-770X-S-Gm M3 Series 7.7" 70W RMS (225W Peak Power Handling) 4 Ohms, 2-Way Marine Coaxial Speakers, Gunmetal with Sport Grilles (Pair)
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What's Inside?
- • (2) 2-way Marine speakers with grilles attached
- • (12) 1-1/8" Philips-head stainless-steel screws
- • (12) Stainless-steel flat washers
- • Template
- • Owner's Manual
Why Choose JL Audio M3-770X-S-Gm Marine Speakers?
Vibrant Style with Immersive Sound
Sport models feature built-in RGB LEDs for a vibrant, customizable accent glow. DMA-optimized woofers reduce distortion and deliver rich, powerful bass, while treated 3/4" silk dome tweeters provide smooth, crystal-clear highs for a fully immersive marine audio experience.
Protected, Versatile Sound
Built-in second-order high-pass tweeter filters with solid-state protection keep your tweeters safe while preserving crystal-clear audio. Power versatility allows seamless operation with quality amplifiers or standard marine head-unit power for flexible installation.
Durable, High-Impact Marine Audio
Built with marine-grade materials, UV-resistant polymer baskets, and durable synthetic fibers, these 7.7" drivers deliver long-lasting performance in harsh saltwater environments. Their oversized design produces clean, detailed sound that cuts through wind, water, and engine noise for an outstanding outdoor listening experience.
Rugged, High-Performance Marine Speakers
Mica-filled polypropylene cones with synthetic rubber surrounds and UV-resistant polymer baskets protect against water, sun, and debris. Sport-style grilles mount tweeters directly for optimal sound dispersion while safeguarding components. Free-air mounting is ideal for cockpits or bulkhead walls, requiring at least 2cu.ft. of airspace for best performance.
Frequently Asked Questions (FAQ)
- • Why do my JL Audio M3-770X-S-Gm speakers sound quieter than my old factory speakers?
The amplifier gain or head unit output may need adjustment. Factory systems often require an external amplifier for maximum performance.
- • Can I install the speakers without using an amplifier?
Yes. They will work with most marine stereos, but an amplifier provides cleaner sound and higher output.
- • Why do my speakers lose clarity when I increase the volume?
This is usually caused by amplifier clipping or excessive bass and treble boost from the head unit.
- • Is the crossover protected from corrosion and vibration on a boat?
Yes, a high-quality 2-way crossover is mounted directly to the woofer basket to keep it protected and ensure the woofer and tweeter work in sync.
- • Why does one speaker stop playing after the boat hits rough water?
Check for loose wiring, corroded terminals, or damaged connectors caused by vibration.
- • Can I mix it with smaller JL Audio marine speakers?
Yes. They can be combined with other JL Audio marine speakers if the amplifier is properly configured.
- • Why do I hear rattling from the speaker area during heavy bass?
The mounting surface or nearby panels may be vibrating. Tighten all hardware and inspect surrounding trim.
- • Do I need a crossover with the M3-770X-S-Gm?
A high-pass filter is recommended to improve sound quality and protect the speakers from excessive low frequencies.
- • Can these speakers be used in outdoor patio or poolside audio systems?
Yes. Their weather-resistant design makes them suitable for many outdoor audio applications.
- • Why are my speaker grilles showing signs of dirt buildup after a few trips?
Salt, dust, and sunscreen residue can accumulate over time during your boat trips. You can easily keep them looking new by regularly cleaning the surfaces with fresh water and mild soap.
- Diameter : 7.7 Inch
- Sensitivity : 90.5 dB
- Impedance : 4 Ohm
- Frequency Response : 45-25000 Hz
- Peak Power Handling : 225 Watts
- Color : Gunmetal
- RMS Power Handling : 70 Watts
Features:
- Built-In RGB LED Lighting: Available on sport models, multicolor LEDs produce a vibrant accent glow to make your boat or watercraft stand out.
- DMA-Optimized Woofers: Proprietary motor, suspension, and cone modeling reduce distortion, improve transient response, and deliver rich, powerful bass.
- Pure Silk Tweeters: Treated 3/4" silk dome tweeters offer lightness, damping, and smooth response for crystal-clear high-frequency detail.
- Integrated Tweeter Filters: Built-in second-order high-pass filters with solid-state protection minimize the risk of tweeter failure while maintaining clarity.
- Power Versatility: Optimized for use with quality amplifiers, yet also compatible with standard marine head-unit power for flexible installation.
- Real Marine Duty: Marine-grade materials, UV-resistant polymer baskets, and durable synthetic fibers ensure long-term performance in harsh saltwater environments.
- Cool, Big Marine Sound: 7.7" drivers overcome wind, water, and engine noise, producing clean, detailed audio even in rough conditions.
- Rugged Construction: Mica-filled polypropylene cones with synthetic rubber surrounds and UV-resistant polymer baskets protect internal components from water, sun, and debris.
- Sport-Style Grilles: Tweeters are mounted directly to the grilles for optimal sound dispersion while keeping components safe.
- Free-Air Mounting Ready: Ideal for mounting in cockpits or bulkhead walls. For best performance, each speaker requires at least 2 cubic feet of airspace.
Specifications:
- Speaker Size: 7.7"
- Design: 2-way
- Tweeter Design: 3/4" Dome
- Tweeter Composition: Silk
- Woofer Composition: Mica-Filled IMPP
- Woofer Surround: Synthetic Rubber
- Sensitivity: 90.5 dB at 1 watt
- Frequency Response: 45 Hz – 25 kHz
- Max RMS Power Handling: 70 watts
- Peak Power Handling: 225 watts
- Impedance: 4 ohms
- Top-Mount Depth: 3 1/4 inches
- Bottom-Mount Depth: N/A
- Cutout Diameter: 6 1/4 inches
- Bolt Circle: 6.91 inches
- UPC: 699440935203
- Weight: 10
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for repair within 1 year from the original date of purchase with proper return authorization.
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Best speakers you can buy !
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None is better than JL Audio. Exceptional marine speakers. Sound quality is really way better than I ever experience before with other speakers.
