Emphasizes the reduction of full-range of high-quality sound, this high-quality three-way speaker system provides powerful fidelity sound for any application. The speakers include the basic characteristics of the same series of other speakers, such as horn dispersion angle and rotation features. IF3115 can be used as an array in any situation, to provide you with flexible options. ? Dispersion angle: 6040, 9050 horn can adjust the amplitude of 90 degrees for horizontal or vertical installation?. ? 15-inch low frequency driver, 8-inch mid-range drivers and three 1.4-inch high-frequency compression driver inch hose outlet. ? Can switch three-amp mode and bi-amp mode. ? 13 10 mm (M10) screw suspension points. ? Durable black spray paint may also needed into other colors. ? Optional display frame. ? Can be connected in parallel Neutrik NL8 connectors (3-amp mode), NL4 (bi-amp mode) Connectors and fencing strip joints.