This concept uses a number of loudspeakers aligned in a vertical array to provide an in phase feed creating a near line source to the listeners. These cabinets are close enough together so there is minimal interference and can provides an evenly distributed sound output pattern. These arrays can provide a long throw effect as well as the traditional horn-loaded speakers. These vertical arrays provide a narrow vertical output pattern that is used for focus of the sound at the audiences without wasting energy. This same array displays a wide horizontal characteristics that is useful for large venue with a large number of people.
Separate drivers are used for at a minimum for the high and low frequencies for a 2 way system or the high, mid and low frequencies for a 3 way system. With the speaker rigged closely together form a column that increases the frequency range and maximum sound pressure level. At the same time, adding cabinet to the array will also lower the frequency response and provide a directional pattern. Sometimes the lower section of these array are curved to increase the dispersion at the bottom of the array and will allow for more coverage to the audience members.
Links
Line Array or Point- and -Shoot
A Fresh Approach to the Line Array
A Closer Look at Line Array Systems and How they Work
Design Guidelines for Practical Near Field Line Arrays
Electro-Voice XLE191 2-way Line Array Element
Ground support tower
JBL’s development team talks about line array concepts
JBL’s development team talks about line array concepts.
http://www.dbaudio.com/fileadmin/docbase/TI323_E.PDF
“Did I Hear Someone Say “Line Array?””. Gtaust.com. Retrieved 2017-03-25..
“Line Arrays: Theory, Fact and Myth” (PDF). Line Array Theory. Meyer Sound Laboratories Inc.
“Line Array Theory” (PDF). Retrieved 2017-03-25..
“Products – Soundvision presentation”. L-Acoustics. Retrieved 2017-03-25..
Adamson Shooter software
Electro-Voice LAPS
JBL Vertec Line Array Calculator
Meyer Sound MAPP Online Pro
EAW KF730 stack on SB730
PerkAudio's House of Horns 