Specifications include, but are not limited to: Main array speakers: A stereo set of Birch wood line array speaker enclosures in a three-way configuration consisting of two 12 inch low and two 6 inch midrange speakers and at least two high endtweeters; Horizontal coverage to be 145 Degrees, Vertical coverage to be 12 Degrees or more narrow;Box enclosure rigging on two front corner points and one rear middle point to be able to be set for anglesof 0Deg, 1.25Deg, 2.5Deg, 5Deg, and 10Deg using quick release pins. The same rigging points will beuseable for attachment to speaker dolly for storage. Weight of each speaker enclosure to be 110Lbs orless. Array to be able to be hung from one point, additional multiple hang points for extra point safety and"steering" of array. Dimensions of Main array speaker enclosures to be no larger than 14"H x 35"W x23"D; Max SPL no less than 140dB. Speaker enclosures to be stored in stacks of four on speaker dollies;Speaker enclosures to have connectors on rear for input and through put matching cables required.