The Mercury M8764 is a selectable 70Volt/100V/8Ohm pendant speaker. Features one custom 8inch woofer, four each 3inch midrange tweeters, a 1-inch tweeter and two bass ports. Dynamic 360° sound with full 180° dispersion, at 15ft high, the area coverage is approximately 3117sq. ft. 150W maximum power at 8ohms and 8 to 64W taps 70V transformer. The M8764 is easy to install in high ceilings, comes with two 20' Gripple Seismic Restraint Cables, and are available in black and white.