Bosch Appliances LBB 1914/10, LBB 1912/10, LBB 1906/10, LBB 1903/10 manual Table of contents

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Plena Mixer Amplifier Installation and Operating Manual Table of contents

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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

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Contents Plena Mixer Amplifier Page Important safeguards About this manual Safety precautionsTable of contents Bosch Security Systems 2003-09 3922 988 92883en About the mixer amplifier Phantom PowerControls and connections front Controls and connections rear Setting the speech filters Internal settingsSetting the VOX for microphone input Setting the output voltage for LBB1914 Setting the chime volumeSetting the output voltage for LBB1903, LBB1906 and LBB1912 Installation in rack Priority microphone External settings and connectionsConnect the DC supply battery 115V/230V Chime ON/OFF-switchEmergency input Microphone inputsMusic source inputs Connecting the line outputLBB1912/10 Connecting loudspeakers2Low impedance loudspeakers Mains connectionOperation of mixer amplifier Volume and tone controlSource selection Zone selection LBB1914/10 onlyElectrical Technical dataPerformance InputsEnvironmental conditions OutputsGeneral Page For more information visit