JL Audio M3-770X-S-Gw M3 Series 7.7" 70W RMS (225W Peak Power Handling) 4 Ohms, 2-Way Marine Coaxial Speakers, Gloss White 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-Gw Marine Speakers?
Durable, High-Volume Marine Sound
Engineered for marine environments, these oversized 7.7" speakers deliver durable, reliable performance. Their larger design increases efficiency, producing louder, cleaner sound even at high volumes.
Powerful Lows and Crystal-Clear Highs
Optimized woofers deliver superior low-frequency performance when paired with a large air volume (2cu.ft. / 57L). 0.75" pure silk dome tweeters, specially treated for marine conditions, provide smooth, clear highs with excellent damping for a balanced, immersive sound.
Flexible Power Handling
Delivers excellent performance with as little as 20W per channel and achieves optimal sound quality when paired with amplifiers providing 75–100W of continuous power per channel.
Affordable, Ready-to-Use Audio
Delivers impressive sound quality at a more accessible price point compared to high-end M6 models. Sold as a pair, providing everything you need for a complete stereo setup.
Frequently Asked Questions (FAQ)
- • Why do my JL Audio M3-770X-S-Gw speakers sound bright but lack low-end punch?
Check the speaker polarity and mounting surface seal. Air leaks can reduce bass response significantly.
- • Can I use the M3-770X-S-Gw speakers with a small marine head unit only?
Yes. They will operate with most marine stereos, but an amplifier will unlock their full performance.
- • Why do my speakers distort only when the boat engine is running?
This may indicate voltage fluctuations, amplifier clipping, or electrical interference in the audio system.
- • Are these speakers suitable for offshore boating applications?
Yes. Their marine-grade construction is designed to handle harsh offshore environments.
- • Why is one speaker producing less treble than the other?
Inspect the tweeter for damage and verify all wiring connections are secure and properly connected.
- • Can I install these speakers in an outdoor kitchen or patio area?
Yes. Their weather-resistant design makes them suitable for many outdoor audio installations.
- • Why do I hear rattling noises near the speakers at high volume?
Loose mounting hardware or vibrating panels around the installation area are common causes.
- • Do these speakers require a marine amplifier to sound their best?
While not required, a quality marine amplifier provides better dynamics, clarity, and output.
- • Why do my speakers sound out of phase after installation?
One speaker may have reversed polarity. Check the positive and negative connections on both speakers.
- • How can I protect the white grilles from staining over time?
Regular cleaning with fresh water and mild soap helps prevent dirt, salt, and sunscreen buildup.
- Diameter : 7.7 Inch
- Sensitivity : 90.5 dB
- Impedance : 4 Ohm
- Frequency Response : 45-25000 Hz
- Peak Power Handling : 225 Watts
- Color : White
- RMS Power Handling : 70 Watts
Features:
- Marine-Grade Construction: Engineered for marine environments, providing durability and reliable performance.
- Oversized 7.7-inch Design: Delivers increased efficiency, enabling louder and cleaner sound at high volumes compared to smaller speakers.
- Optimized Woofer Design: Designed to work with a large volume of air (at least 2 cu. ft. / 57 l) for superior low-frequency performance.
- 0.75-inch Pure Silk Dome Tweeter: Specially treated for marine conditions, offering smooth and clear high-frequency response with excellent damping properties.
- Power Handling: Performs well with as little as 20 W per channel; best with amplifiers providing 75-100 W of continuous power per channel.
- Affordable Performance: Provides excellent sound quality at a more accessible price compared to high-end M6 models.
- Sold as a Pair: Includes two speakers.
Specifications:
- Speaker Size: 7.7 inches
- 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
- Cutout Diameter: 6 1/4 inches
- Bolt Circle: 6.91 inches
- UPC: 699440935227
- 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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Write a review!
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Appearance is 5-star! Nice finish! The speakers’ larger size are a huge help as it delivers better lows than the usual 6.5s, and I feel that they are more powerful too.
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These speakers deliver outstanding sound—true high quality all the way. The clarity is impressive, and the mid-bass is spot on. They're a fantastic addition to any boat.
