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Operation Of Mixer Amplifier; Source Selection; Volume And Tone Control; Zone Selection (Lbb1914/10 Only) - Bosch LBB 1903/10 Installation And Operating Manual

Plena mixer amplifier installation and operating manual
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Plena Mixer Amplifier | Installation and Operating Manual |
5

Operation of mixer amplifier

2
3
Plena Mixer Amplifier
1
0 dB
-6 dB
-20 dB
3
Power
Figure 4.6
Use the supplied mains cord to connect the system to the mains supply.
1
5
Figure 5.1

5. 1 Source selection

Use the music source selector (8) to select one of the connected music sources.
Use the input volume controls (3, 4, 5, 6 and 7) to balance the sound level of the microphone inputs and the
background music.

5.2 Volume and tone control

Use the master volume control (11) to control the volume of the music/microphone mix.
The treble and bass tone controls (9 and 10) affect the microphones as well as the music.

5.3 Zone selection (LBB1914/10 only)

Use the zone selection buttons (12 and 13) to route the music/microphone mix from the amplifier output to
loudspeaker zone 1 and/or loudspeaker zone 2. Priority announcements, however, are always routed to both
zones, irrespective of the position of the zone selection buttons.
Bosch Security Systems | 2003-09 | 3922 988 92883en
4
8
2
Select
CD
AUX
4
Line
6
7
Operation of mixer amplifier
9
Master
10
en | 19
Only for LBB1914/10
Zone 1
Zone 2
11
12
13

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This manual is also suitable for:

Lbb 1906/10Lbb 1912/10Lbb 1914/10