Owners Manual
As the next step in this excercise, let’s assume you have to move the IC16 10 feet futher away from the
audience area and up 20 feet in height. Change the Position [ft] parameters to read X = -10 and Y = 24
and reaim the two lobes.
As you can see, there is no way to get smooth coverage from this mounting location with just two beams.
Switch to 6 lobes and try again. Notice how the coverage is much smoother. You probably also noticed that
with the array placed at this height, you cannot get good coverage on the front of the audience area. You
will either need to add front fill loudspeakers or lower the column. The following screen shows what can be
accomplished with the column lowered to 15 feet and the beam aiming and levels adjusted.
Notice that the SPL levels dropped significantly. The more lobes you use the lower the level of each lobe.
Spacing the beam’s acoustical centers further apart will produce higher overall SPL levels than placing all
the acoustical centers at the same spot. Be aware that moving the acoustical centers of the multiple lobes
apart affects the signals coherency and degrades the sound. It’s best to keep them close together in sys-
tems like this.
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