Bosch Plena Power Amplifier LB1935 - Line Input and Loopthrough Connections

Bosch Security Systems | 2006-11 | 9922 141 50751en
Plena Power Amplifier | Installation and User Instructions | Amplifiers en | 13
3.5.2 Connecting line input and
loopthrough
The power amplifier has a balanced line input for
connection to a pre-amplifier or a mixer. Use the
loopthrough connection to connect the power amplifier
to another power amplifier if more power is needed.
Each power amplifier must be connected to its own set
of loudspeakers. Do not connect power outputs to each
other.
Use program line - input 2 (4) and line loopthrough 2 (6)
for normal operation without priority.
figure 3.7: Line input and loopthrough
100V
01
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ated
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54
1
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ad
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R
ated
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1
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nput
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rec
tO
utput
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amInput 1-P r
io
ri
ty
2
..2
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ult
Of
f
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GND
LBB1925/10
115V-
230V-
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Warn
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MasterOut
1-
4
3
5
T
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/
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Out
CallIn
Call Ac
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Zone6
Zone5
Zone1
CD
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PC
A
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1.Audio
+
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3.A
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6.Data-
7.
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8.Chs
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LBB 1
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0192 50
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11
5/230V~, 50
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z
No.
RS2 32
/Line
/Line
Aux
3
5
4
1
2
3
7
6
8
5
4
1
2
2
1
+
-
GND
3
1
2
+
-
GND
3
Zone2
Zone3
Zone4
DCOut
DCIn
100V
100V0
0
100V
0
100V
0
100V
100V0
0
100V
100V0
0
4 6 4 6