Patent ID: 7260228

Claim:
A loudspeaker system having a line array of drivers comprising: a first pair of drivers configured to receive a signal from a sound source; a center point along the line array, wherein the first pair of drivers are substantially centered about the center point with a center to center distance of d 0 between the first pair of drivers; at least a subsequent pair of drivers arranged in the line array with the first pair of drivers and substantially centered about the center point, wherein the subsequent pair of drivers are spaced such that the center to center distance between each at least a subsequent pair of drivers, d n , is equal to 4nd 0 , where n=0 at the first pair of drivers and n increases by 1 for each at least a subsequent pair of drivers, wherein a low pass filter is associated with each of the at least a subsequent pair of drivers, and wherein the corner frequency, f n , of each such low pass filter is equal to 2c/d n , where c is the speed of sound.