Line array speaker hoist hoisting angle standard

The horizontal angle of the hanger is 10 degrees, and the angle between the floor and the level is 31 degrees. Line array speaker hoist hoisting angle standard for the lowest angle of the hanger level is 10 degrees, the optimal standard is 8 degrees, the bottom of a speaker floor and the horizontal angle is 81 degrees. Line array speaker is a set of arranged in a straight line, closely spaced radiation unit, and has the same amplitude and phase.