The oversized 7.7-inch design of the M6-770X coaxial results in increased efficiency (more output for a given amount of power). Combine that advantage with long excursion and excellent power handling and you have a speaker system truly capable of playing loud and clear in a powerboat at speed. A 1-inch pure silk dome tweeter, specially treated to withstand the marine environment, handles the high-frequency duties. You will appreciate the clean, articulate high-frequency response of the M6 dome tweeter, especially at higher volume levels. A true 2-way passive crossover network is built into the terminal assembly to protect it from vibration and corrosion. Although M6-770X Coaxial Systems can be used with as little as 40 W per channel, for best audio performance we recommend amplifiers capable of between 40-200 W of continuous power per channel. JL Audio’s line of M6 marine speakers brings a whole new level of sound and style to your boat. These powerful 7.7” speakers combine innovative design with rugged, marine-ready componentry to give you outstanding audio performance that really cuts through the wind, water, and engine noise.