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CBT Quick Start Guide
11
Example #2 –Highly-Raked Seating
Description – This example is somewhat typical of venues such as lecture halls, performance spaces,
and auditoriums. Shown are the CBT 100LA, CBT 70J and the CBT 70J+70JE combination. All are
set at the Broad Vertical Coverage setting.
Listening Plane = Rise of 4.9 m (16 ft) in 15.2 m (50 ft) of depth, beginning 1.2 m (4 ft) above the
floor.
Mic Placement = 6.1 m (20 ft, red icon), 10.7 m (35 ft, blue icon) and 16.8 m (55 ft, green icon) in room
depth.
CBT 100LA in Broad Setting
Trim Height = 4.3 m (14 ft, Top of Speaker)
Down Tilt = 0°
Vertical Coverage Setting = Broad
SPL
(Full rated power, low-Z, SPEECH setting, 4 kHz, scale in feet):
0
5
10
15
20
25
30
0 10203040506070
105
100
95
90
85
80
75
Frequency Response (Full rated power, low-Z, speech setting, mic positions as designated above):
SPL Range
4 kHz
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