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Low Impedance Loudspeakers; Mains Connection - Bosch LBB 1903/10 Installation And Operating Manual

Plena mixer amplifier installation and operating manual
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4.8.2Low impedance loudspeakers

Connect low impedance loudspeakers to the 8 Ohm/0 terminals. This output can deliver the rated output power
into an 8 Ohm load. Connect multiple loudspeakers in a series/parallel-arrangement to make the combined
impedance 8 Ohm or higher. Check the loudspeaker polarity for in-phase connection. Ensure that the jumper(s) for
loudspeaker voltage selection is / are properly set (see §2.5).

4.9 Mains connection

Figure 4.11
Use the supplied mains cord to connect the system to the mains supply.
Note
If necessary set the switch 115/230 V to the required voltage using a sharp object, e.g. a small screwdriver.
Bosch Security Systems | 2003-09 | 3922 988 92883en
External settings and connections
Tel /Em
L
er.
0
R
0 2
CD
Ou t
Ch ime
Aux
1- -3
Lin e
Ou t 1V
In
4 .5
Mic /Lin
Inc
e
Mic /Lin
1
e
2
115 V/2
30V
3
4
Wa rnin
g
This
app arat
us mus
t be
eart hed
1 1 5 V
/2 3 0
V
W a rn
in g
T h is
a p p a
ra tu s
m u s t
b e e a
rt h e d
en | 18

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