Bosch LBB 1920 Operations Instructions download pdf (Page 16)

Bosch Security Systems | 2003-09 | 3922 988 99482en

Plena Universal Pre-amplifier | Installation and Operating Manual | en | 16

5Operation

Figure 5.1

5.1 Set Line input volume, treble and bass

You can adjust the volume, treble and bass for each channel by turning the corresponding knobs. To change the

overall volume you must turn the 'Master' volume knob.

5.2 Line monitoring

The line monitoring can be used to listen to a single channel or the master channel. To do so connect a headphone

at the front of the pre-amplifier. Use the 'Select' switch to select a channel.

Note

The VU-meter always shows the volume for the selected channel.

0dB

-6

-20 dB

2/Line

ine

Mast

lect

a Univ

Pre

ampli

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Operation

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Bosch LBB 1920 Operations Instructions Page 16