Figure 28: Spl Map Of One Full-Range Column (500 Hz); Figure 29: Spl Map Of One Full-Range And One Low Frequency (500 Hz) - Community Entasys Installation & Operation Manual

ARRAY COVERAGE CONFIGURATIONS
Figure 29: One Low Frequency and One Full-Range Column (500 Hz)
L O N G L I N E A R R AY S A N D T H E I R C O V E R A G E
One thing that should be kept in mind when using line array loudspeakers is the nature of their radiation
pattern and the resulting coverage. This can be remarkably different than "point source" loudspeakers. The
radiation from a conventional point source type device can theoretically be traced back to a point of origin. This
is not the case with a line source. The line source inherently has a height associated with it at its origin, while a
point source does not. This fundamental difference can greatly alter the way a line array can be used to cover
an area with sound.
As more columns are added to an array the line length gets longer. This results in the narrowing of the
vertical beamwidth of the array. At the same time the coverage of the array may actually be increasing due to
the increased height of the array. While this may seem counterintuitive, an illustration may help to demonstrate
this effect.
Figure 28: One Full-Range Column (500 Hz)
PAT T E R N S
Community ENTASYS Installation/Operation Manual — Page 49
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