Bosch LBB 1946 - System Pre-amplifier Operation

Bosch Security Systems | 2003-09 | 3922 988 99483en
Plena System Pre-amplifier | Installation and Operating Manual | en | 18
5 Operation (system pre-amplifier)
Figure 5.1
You can adjust the volume and tone for the mic/line input with the knobs on the left panel. The knobs for
background music selection, volume and tone are on the centre panel. To select the zones to which the background
music must be send press the keys on the right hand panel. When a zone is active the indication LED is on.
Operation
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L
i
n
e
P
ow
er
CD
A
UX
Se
l
e
c
t
Z
1
Z
2
Z
3
+
+
Z4
Z5
Z6
0
d
B
-6
dB
-
2
0
dB
P
l
ena Sy
stem Pre-amp
l
ifier