Linear phase designed to ensure that all the speakers constant delay (time alignment). ? Consistent phase corresponding reduction in mutual interference Series speakers. ? Similar acoustic characteristics allow a combination of these speakers became very easy to use. ? Three kinds of dispersion angle: 6040 (/ 64), 9050 (/ 95), 9090 (/ 99). ? Horn 90 degrees banners can be adjusted to any one of four positions. ? Large horn better angle control, lower distortion and better resolution. ? FRP horn structure to eliminate resonance. ? Trapezoidal design reduces interference with each other when the array applications. ? Switchable bi-amp amplifier and single mode. ? 15 10 mm (M10) screw. ? 4 M10 bolts for ceiling suspension flank. ? 4 8 mm (M8) screw located on the rear panel of the speakers for the production of third-party wall or ceiling hanging bracket.