Genuine JL Audio M3-Series 7.7" marine coaxial speaker set with Gunmetal Sport grilles, engineered for high-output sound in open-air (infinite-baffle) boat installations.

OEM references: M3-770X-S-Gm / Garmin 010-03066-00. Supplied as a pair.

• Continuous power handling: 70 W RMS (per channel)
• Recommended amplifier power: 20–140 W RMS / channel
• Nominal impedance: 4 Ω
• Frequency response: 45 Hz – 25 kHz (±3 dB)
• Efficiency: 90.5 dB @ 1 W / 1 m
• Materials: injection-molded, mica-filled polypropylene woofer with synthetic rubber surround; 0.75" treated silk-dome tweeter
• Built-in protection: 2nd-order high-pass tweeter filter with solid-state protection circuit
• Mounting (each speaker): outer Ø 7.70" (196 mm); cutout Ø 6.25" (159 mm); mounting depth 3.17" (81 mm); Sport grille protrusion 1.10" (28 mm)
• Lighting: non-illuminated model (no built-in RGB LEDs)

Before ordering: confirm cutout diameter, depth clearance, and that your amplifier power matches the recommended RMS range to avoid damage and ensure best performance.