Built for real marine duty, the M3-770X 7.7" Marine Coaxial Speakers offer outstanding audio performance at a more affordable price than JL Audios premium M6 models. The oversized 7.7-inch design enhances efficiency, delivering louder and cleaner sound at higher volumes compared to smaller speakers. The speaker features a long-excursion woofer optimized for larger enclosures (at least 2 cu. ft. / 57 liters) to ensure deep bass performance. A 0.75-inch pure silk dome tweeter provides smooth and detailed highs, specially treated for marine environments. Integrated LED lighting in the Sport Grille frame adds a vibrant glow, while an optional RGB controller lets you customize the lighting with thousands of color options. Professional installation is highly recommended. The M3-770X speakers perform best with amplifiers delivering 75â100W of continuous power per channel, though they can operate with as little as 20W per channel.• Amazing fidelity and affordability in marine settings• Exceeds international standards for salt fog and UV exposure• Built-In RGB LED Lighting produces a vibrant accent glow• 2-Years Warranty• Sold as a pairSpecsContinuous Power Handling (RMS): 70wRecommended Amplifier Power (RMS): 20 - 140w/ chSystem Efficiency: 90.5 dB @ 1 W / 1 mSystem Nominal Impedance: 4 ohmSystem Frequency Response: 45 Hz - 25 KHz ± 3 dB 0.75"" silk dome tweeter for smooth highs LED lighting with optional RGB control Power range: 20W100W per channel | JL Audio M3 Series 7.7" Marine Coaxial Speakers w/ RGB LED Lighting | Grey Metallic