Description
Included in this kit
This bundle includes a JL Audio M3-770X-S-Gm - M3 7.7" Marine Coaxial Speakers (pair) - Gunmetal Sport Grilles, and a JL Audio MX280/4 4 Channel 280 watt, Marine/Power Sports grade amplifier.
1x JL Audio M3-770X-S-Gm - M3 7.7" Marine Coaxial Speakers (pair) - Gunmetal Sport Grilles - (M3-770X-S-Gm)
JL Audio M3-770X-S-Gm - M3 7.7" Marine Coaxial Speakers (pair) - Gunmetal Sport Grilles
7.7-inch coaxial system with 0.75-inch (19 mm) marine silk dome tweeters, 70W, 4 ohms
M3 Marine Coaxial Speakers - High-performance sound, engineered for real marine duty
Truly Engineered for Marine Duty
To ensure long-term performance, all models are designed and built to exceed industry standards for salt-fog and UV exposure. These are saltwater-rated products that you can use with confidence.
Outstanding Sound Quality
• Acoustically engineered to produce powerful, smooth sound in real-world, open-air, marine environments.
• Long-excursion, high-efficiency woofers and treated silk dome tweeters deliver superior output capability with clear, high frequency detail.
• Integrated 2nd order, high-pass filter on tweeters, with solid-state protection circuit to minimize the possibility of tweeter failure.
Versatile Power Requirements
• Suitable for use with standard marine head-unit power.
• Designed to benefit with quality amplification, such as the JL Audio marine amplifiers.
Choose Your Look
• Available in two grille styles: “Classic” or “Sport”, both in Gloss White. Sport models are also available in a sleek, all Gunmetal finish.
• Allows you to match the look of the speakers to the theme of the boat interior.
General Specifications
| Continuous Power Handling (RMS) | 70 W |
| Peak Music Power | 225 W |
| Recommended Amplifier Power (RMS) | 20 - 150 W / Ch. |
| System Efficiency | 90.5 dB @ 1 W / 1 m |
| System Nominal Impedance | 4 Ω |
| System Frequency Response | 45 Hz - 25 KHz ± 3 dB |
Physical Specifications
| Frame Outer Diameter (A) | 7.70 in / 196 mm |
| Bolt Hole Circle Diameter (B) | 6.92 in / 176 mm |
| Motor Outer Diameter (C) | 4.27 in / 108 mm |
| Frontal Grille Protrusion* (D) | 1.00 in / 25 mm |
| Mounting Hole Diameter (E) | 6.25 in / 159 mm |
| Mounting Depth (F) | 3.15 in / 80 mm |
1x JL Audio MX280/4 4 Channel 280 watt, Marine/Power Sports grade amplifier - (MX280/4)
JL Audio MX280/4
Engineered specifically for powersports applications, the 4-channel MX280/4 amplifier employs our high-speed NexD™ switching design to deliver plenty of clean power, without straining charging systems. Its tiny, cast aluminum chassis is highly resistant to corrosion, with an IPX6 water-resistance rating, making it perfect for motorcycles, ATV’s or other utility vehicles.
Generating a solid 50W x 4 into 4 ohms (14.4V, 1% THD), the MX280/4 is fully bridgeable, so it can be used as a 3-channel amplifier, or as a 2-channel amplifier producing a potent 140W x 2 into 4 ohms.
Other features include independent front and rear crossovers with selectable full-range, high-pass or low-pass filter controls and a dual-range input section that accepts a wide range of input voltage levels, from line-level all the way to high-power speaker level signals.
Rated Continuous (RMS) Power @ 14.4 V
| @ 4 Ω | 50 W RMS x 4 |
| @ 2 Ω | 70 W RMS x 4 |
| Bridged @ 4Ω | 140 W RMS x 2 |
Rated Continuous (RMS) Power @ 12.5 V
| @ 4 Ω | 36 W RMS x 4 |
| @ 2 Ω | 52 W RMS x 4 |
| Bridged @ 4Ω | 100 W RMS x 2 |
General Specifications
| Frequency Response | 20 Hz - 20 kHz (+0, -1dB) |
| S/N Ratio, referred to highest rated power | >89.5 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) |
| S/N Ratio, referred to 1 W | >68 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) |
| Damping Factor @ 4 Ω | >60 / 50 Hz |
| Damping Factor @ 2 Ω | >30 / 50 Hz |
| THD+N @ Rated Power | <1% @ 2 Ω per Ch. |
| Input Voltage Range @ RCA Inputs | Switchable from 250 mV - 4 V RMS (Low) to 750 mV - 15 V RMS (High) |
| Min.Copper Power / Ground Wire Gauge | 8 AWG wire |
| Fuse Rating | 35 A (AFS, AGU or MaxiFuse™) |
Signal Processing
| Filter Mode(s) | Low-Pass or High-Pass |
| Filter Slope(s) | 12 dB/octave |
| Filter Frequency Range | 35 Hz - 300 Hz |
| Detented, Calibrated Filter Freq. Potentiometers | Yes |
| Filter Defeat Function | Yes |
| Remote Level Control | No |
| Remote Level Modes | N/A |
| Channel Input Mode Switch | Yes (2/3/4 ch.) |
| Pass-Through Preamp Output | None |
| Source Channel Selection for PreOuts | N/A |
Physical Specifications
| Height (H) | 1.77 in / 45 mm |
| Width (W) | 8.66 in / 220 mm |
| Depth (D) | 3.09 in / 78.5 mm |
| Net Weight | 3.18 lb / 1.44 kg |