Marine Sound Redefined – JL Audio M6-650X-C-3GW 6.5” Marine Coaxial Speakers

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Introduction

The JL Audio M6-650X-C-3GW 6.5-inch marine coaxial speakers are a stunning fusion of engineering precision, aesthetic sophistication, and sonic power — built specifically for marine environments. Designed to deliver immersive, full-range sound with unmatched clarity and richness, these premium speakers are ideal for serious boaters and audiophiles who refuse to compromise. Outfitted with a clean Gloss White Classic Grille (C-3GW), the M6-650X speakers are as elegant as they are powerful.

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Elevated Sound Performance on the Water

At the heart of the M6-650X-C-3GW is JL Audio’s most advanced marine speaker technology. Featuring a long-excursion 6.5-inch woofer cone with a synthetic fiber spider and UV-resistant Santoprene surround, these speakers produce tight, impactful midbass and rich midrange tones. The 1-inch silk dome tweeter, mounted coaxially, ensures smooth, extended highs that deliver audiophile-grade detail even in noisy open-air environments.

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Built Tough for Salt, Sun, and Spray

Every aspect of the M6-650X-C-3GW is designed to endure the demanding marine environment. These speakers are constructed using marine-grade materials, including a corrosion-proof polymer basket, stainless steel hardware, and sealed crossover networks. They’re tested to meet IP65 standards for water and dust resistance, ensuring long-term performance in saltwater, UV exposure, humidity, and vibrations.

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High Power, High Output, High Fidelity

With a robust 75 watts RMS power handling and 225 watts peak, these speakers thrive in high-power systems and offer outstanding dynamic range. They boast a 4-ohm impedance and sensitivity of 89.5 dB, providing effortless clarity and powerful output whether driven by a JL Audio marine amplifier or a high-end head unit. No matter your source, these speakers bring out the best in your music.

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Classic Style with Gloss White Grilles

Aesthetically, the C-3GW (Classic Gloss White Grille) offers timeless elegance that suits any boat interior or deck. Clean, simple, and built to last, this grille resists UV yellowing and corrosion while perfectly blending with JL Audio’s other M6 products. Whether you're refitting a luxury yacht or upgrading your sport boat’s audio, the M6-650X-C-3GW looks as premium as it sounds.

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Key Features

• 6.5-Inch Marine Coaxial Speaker System: Produces balanced, full-range audio across all listening levels.

• 1-Inch Silk Dome Tweeter: Smooth, detailed high frequencies with no harshness.

• Long-Throw Woofer Cone: Delivers powerful midbass and dynamic performance.

• Classic Gloss White Grille (C-3GW): Sleek, UV-stable styling that matches any marine aesthetic.

• 75W RMS / 225W Peak Power Handling: Built to handle high-power marine amplifiers.

• 4-Ohm Impedance and 89.5 dB Sensitivity: Easy to integrate into any premium marine audio system.

• IP65 Certified: Saltwater-ready, UV-tested, and moisture-resistant for reliable long-term use.

• Made in the USA: Built in JL Audio’s Miramar, FL facility with marine-grade quality control.

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Why Choose the JL Audio M6-650X-C-3GW?

When only the best will do for your marine audio system, the JL Audio M6-650X-C-3GW stands apart. It delivers exceptional sound quality, rugged reliability, and stylish design in a compact 6.5” form. Ideal for discerning boaters and audio lovers, these speakers are part of JL Audio’s flagship M6 line — purpose-built to outperform in real-world marine environments.

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What’s in the Box?

• 2 x JL Audio M6-650X-C-3GW 6.5-Inch Marine Coaxial Speakers

• 2 x Classic Gloss White Grilles (pre-installed)

• Mounting Hardware Kit

• User Manual

• JL Audio Decals

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Specifications

• Speaker Size: 6.5 inches

• Power Handling (RMS): 75 watts

• Peak Power Handling: 225 watts

• Frequency Response: 55 Hz – 25,000 Hz

• Impedance: 4 ohms

• Sensitivity: 89.5 dB @ 1W/1m

• Mounting Depth: 2.74 inches (70 mm)

• Cutout Diameter: 5.00 inches (127 mm)

• Grille Style: Classic Gloss White (C-3GW)

• Environmental Rating: IP65 (Water/Dust Resistant)

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FAQs

Are the M6-650X-C-3GW speakers saltwater safe?

• Yes! These speakers are IP65-rated and built with marine-grade materials, making them safe for saltwater exposure and heavy-duty boating.

Can I use these speakers with a factory marine head unit?

• Yes, but they’ll perform best when paired with a marine amplifier rated at 75 watts RMS per channel.

Do they include grilles?

• Yes, each speaker comes with a pre-installed Classic Gloss White (C-3GW) grille.

What makes the M6 Series different from M3?

• The M6 Series offers higher output, smoother frequency response, and superior materials, making it ideal for high-end marine systems.

Are these speakers easy to install?

• Yes, with standard 6.5" sizing and included mounting hardware, they integrate easily into most boats.

How long will these speakers last?

• Built with UV-resistant, corrosion-proof components, the M6-650X-C-3GW is engineered to last for many years of marine use.