User manual

C3 Data Sheet C3
C3 horizontal isobar diagram
C3 SUB
TOP
C3
C3
C3
C3
C3
TOPTOP
SUB
SUB
SUB
SUB
SUB
SUB
SUB
SUB
SUB
TOP
-30° +30°0° 0°
0°
-1°
-3.5°
-8.5°
-18.5°
Far
field
Mid-
field
Near fieldSidefill
Stage
Dispersion characteristics
The diagram below shows dispersion angle vs frequency, plotted
using lines of equal sound pressure (isobars) at –6 dB and –12 dB.
The nominal horizontal dispersion of 35° is maintained above
900 Hz.
Example set up
The example below shows a C3/C4 set up arranged to provide the
coverage and level distribution for a simple rectangular audience
area. The central C3 column projects energy to the far field with a
40° horizontal coverage angle, the C4-TOP cabinets lower down in
the cluster provide the wider horizontal coverage angle required in
the near field. The C3s in the inner column cover the mid-field and
the mixing position, while the column of C4-SUBs maintains a
consistent vertical directivity in the lower frequencies.