The JL Audio M3-770X-C-GW is a genuine M3 Series 7.7-inch (oversized) 2-way marine coaxial speaker set designed for real open-air boat installations. Built with saltwater-rated materials and a gloss white Classic grille, it delivers higher output and stronger mid-bass than typical 6.5-inch marine speakers while staying smooth and detailed at volume.

• Configuration: 2-way marine coaxial speakers (sold as a pair)
• Power handling (continuous/RMS): 70 W per speaker (225 W peak music power)
• Nominal impedance: 4 Ω
• Frequency response: 45 Hz – 25 kHz (±3 dB)
• Sensitivity: 90.5 dB @ 1 W / 1 m
• Tweeter: 0.75 in (19 mm) treated silk dome with integrated high-pass filtering and tweeter protection
• Woofer: injection-molded, mica-filled polypropylene cone with rubber surround
• Finish: Gloss White Classic grilles (this Classic model does not include RGB LED lighting)
• Free-air/infinite-baffle use: Optimized for open-air installs; for best low-frequency performance allow at least 2 cu ft (57 L) of airspace behind each speaker
• Mounting dimensions: frame OD 7.70 in (196 mm); cutout 6.25 in (159 mm); mounting depth 3.15 in (80 mm); grille protrusion 1.00 in (25 mm)
• Recommended amplifier power: 20–140 W RMS per channel @ 4 Ω (JL Audio suggests ~75–100 W/ch for best results)
• In the box: (2) speakers with grilles attached, stainless mounting screws & washers, mounting template, owner’s manual
• Reference numbers: JL Audio M3-770X-C-GW (grille: Gloss White Classic); JL Audio MFG# 010-03065-00; UPC 699440935197; Supplier SKU JLM3-770X-C-GW

Before ordering: Confirm cutout diameter, mounting depth clearance and amplifier ratings/specs to ensure correct fitment and avoid speaker damage. Need help matching an amp or replacing an existing M3 speaker set? Contact TMP Global’s marine audio parts team.