ABSTRACT
For the purposes of this discussion we can define a loudspeaker array as a group of two or more full-range loudspeaker systems, arranged so their enclosures are in contact. System designers use arrays of multiple enclosures when a single enclosure cannot produce adequate sound pressure levels, when a single enclosure cannot cover the entire listening area, or both. These problems can also be dealt with by distributing single loudspeaker systems around the listening area, but most designers prefer to use arrays whenever possible because it is easier to maintain intelligibility using a sound source that approximates a point source than by using many widely separated sources.
