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Table Of Contents - 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 | Table of contents

Table of contents

Important safeguards..........................................................................................................................................................3
About this manual ..............................................................................................................................................................4
Safety precautions...............................................................................................................................................................4
Table of contents ................................................................................................................................................................5
1 About the mixer amplifier ................................................................................................................................................7
1.1
Controls and connections (front) .............................................................................................................................8
1.2
Controls and connections (rear) ..............................................................................................................................9
2 Internal settings ................................................................................................................................................................10
2.1
Setting the VOX for microphone input 1 ............................................................................................................10
2.2
Setting the speech filters .........................................................................................................................................10
2.3
Setting the chime volume ......................................................................................................................................11
2.4
Setting the output voltage for LBB1903, LBB1906 and LBB1912 ....................................................................11
2.5
Setting the output voltage for LBB1914 ...............................................................................................................11
3 Installation in rack ...........................................................................................................................................................12
4 External settings and connections .................................................................................................................................13
4.1
Connect the DC supply (battery) ..........................................................................................................................13
4.2
Priority microphone ...............................................................................................................................................13
4.3
Chime ON/OFF-switch .........................................................................................................................................14
4.4
Microphone inputs ..................................................................................................................................................15
4.5
Emergency input .....................................................................................................................................................15
4.6
Music source inputs ................................................................................................................................................16
4.7
Connecting the line output ....................................................................................................................................16
4.8
Connecting loudspeakers .......................................................................................................................................17
4.8.1
Constant voltage loudspeakers .........................................................................................................................17
4.8.2
Low impedance loudspeakers ..........................................................................................................................18
4.9
Mains connection ....................................................................................................................................................18
5 Operation of mixer amplifier .........................................................................................................................................19
5.1
Source selection .......................................................................................................................................................19
5.2
Volume and tone control .......................................................................................................................................19
5.3
Zone selection (LBB1914/10 only) .......................................................................................................................19
6 Technical data ..................................................................................................................................................................20
6.1
Electrical ..................................................................................................................................................................20
6.2
Performance ............................................................................................................................................................20
6.3
Inputs ........................................................................................................................................................................20
6.4
Outputs .....................................................................................................................................................................21
6.5
Environmental conditions ......................................................................................................................................21
6.6
General .....................................................................................................................................................................22
Bosch Security Systems | 2003-09 | 3922 988 92883en
en | 5

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This manual is also suitable for:

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