The next thing in directivity. A Breif History Of The Horn: When Og the cave man wanted to be heard, he cupped his hands around his mouth. This was the first acoustic horn. Then came conical horns, like bugles and trumpets, they made things louder. Next came radial horns, they spread things out. . . a bit. Then came constant directivity, they spread things more evenly. Now comes Directed Coverage! A new design to achieve a real world coverage pattern by directing the sound down where the audience is. Not up on the ceiling.  All WRIGHT horns use DC technology for real-room coverage. Directed Coverage means the sound is directed at the audience, not the ceiling or side walls.  Regular old fashioned horns are symmetrical in both vertical and horizontal axes. This is an easy way to design and build horns but it does not fit real rooms. No one is sitting on the ceiling, why aim half of the sound up there? If the speaker is above peoples heads, the pattern should be skewed downward. If the speaker is near a side wall, the pattern should be directed away from the wall and towards the center while the axis remains straight ahead.  Oblique Vari-Q Specifically for churches and auditoriums where the speaker is flown in the center front of a room longer than it is wide. The Oblique horn is designed to cover a rectangular room from an oblique angle. Provides wide angle coverage for the front of the room and narrower for the back plus more spl to compensate for the inverse square law. Coverage pattern is 120° / 60° horizontal x 60° vertical creating a trapezoidal pattern. Dimensions: 21" w x 33" h x 15.5" d   Array This horn maintains a tight uniform pattern for use in multiple speaker arrays in stadiums, gymnasiums and large auditoriums. The complex throat pattern directs more energy toward the farther seats to compensate for the inverse square law. Available in 60°x30°, 40°x20°, 30°x30° & 30°x15° Dimensions: 21" w x 33" h x 15.5" d   Horizon Used for bands, DJ's and PA systems, the Horizon horns have a tilted pattern to keep the sound where the audience is, not on the ceiling. Available in 120°x40°, 90°x40° and 60°x40°. Vertical pattern is 10° up and 30° down. Dimensions: 21" w x 14" h x 13.5" d   Prism Designed to produce a proper stereo image within the viewing area, the Prism device defies normal limitations and actually seems louder as you move away from it. Dimensions: 15" w x 15" h x 8.5" d