Bosch LBB 1914/10 Manual Do Utilizador
Bosch Security Systems | 2003-09 | 3922 988 92883en
Plena Mixer Amplifier | Installation and Operating Manual |
en | 17
4.8 Connecting loudspeakers
Figure 4.8
4.8.1 Constant voltage loudspeakers
The mixer amplifier can drive 100 V constant voltage loudspeakers at full power (100 V) or half power (70 V).
Connect the loudspeakers in parallel and check the loudspeaker polarity for in-phase connection. The summed
loudspeaker power should not exceed the rated amplifier power. Ensure that the jumper(s) for loudspeaker voltage
selection is / are properly set (see §2.4).
Connect the loudspeakers in parallel and check the loudspeaker polarity for in-phase connection. The summed
loudspeaker power should not exceed the rated amplifier power. Ensure that the jumper(s) for loudspeaker voltage
selection is / are properly set (see §2.4).
You can use the Call Only output for 3-wire remote volume control override. In this case, ensure that the selected
voltage for the Call Only output is the same as for the direct output or the zone outputs.
voltage for the Call Only output is the same as for the direct output or the zone outputs.
0
0
0
8 Ohm
8 Ohm
70V
100V
100V
70V
JP802
100V
0
70V
0
0
+
-
24V
24V
Call Only
0
0
Mix Only
0
Call Active
8 Ohm
8 Ohm
70V
70V
100V
100V
JP901
0
0
+
-
24V
24V
Call Only
Zone 2
Zone 1
Call/Mix
Call/Mix
Call/Mix
Call Active
Mix Only
Z1 Front
Z2 Front
LBB1914/10
LBB1903/10
LBB1906/10
LBB1912/10
JP902
100/70
0
0
0
0
0
0
0
0
0
0
0
0
0
External settings and connections
115V/2
30V
Appara
tus deliv
ered
connec
ted for
230V-
Rated
input
power
: 400V
A
This ap
paratus
must b
e earth
ed
Warning
2
1
3
4
Mic/Lin
e
Mic/Lin
e
CD
L
R
Aux
Line O
ut 1V
Inc
Out
In
Tel/Eme
r.
0
0 2
Chime
4 .5
1- -3
Call/M
ix
24VDC
In
Call On
ly Mix
Only
100V
0 70V
0
100/70V
0 100/7
0
V 0
8
0
Call/Mix
direct out
100V
Call/Mix
direct out
70V
Call Only
100/70V
Mix Only
100/70V
100/70V
8 Ohm
Call/Mix direct out 8 Ohm
Call/Mix
24VDCIn
Call Only Mix Only
100V 0 70V
0
100/70V 0 100/70V 0
0
8
100V 0 70V
0
100/70V 0 100/70V 0
0
8
Call/Mix
24VDCIn
Call Only Mix Only
4 Ohm
4 Ohm
8 Ohm
8 Ohm
8 Ohm
8 Ohm
LBB1903/10
LBB1906/10
LBB1912/10
115V/2
30V
Appara
tus deliv
ered
connec
ted for
230V-
Rated
input
power
: 400VA
This ap
paratus
must b
e earth
ed
Warning
2
1
3
4
Mic/Lin
e
Mic/Lin
e
CD
L
R
Aux
Line O
ut 1V
Inc
Out
In
Tel/Eme
r.
0
0 2
Chime
4 .5
1- -3
Call/Mix
direct out
100/70V
Zone 1
100/70V
Zone 2
100/70V
Call Only
100/70V
8 Ohm
Mix Only
100/70V
100/70V
Call/Mix direct out 8 Ohm
4 Ohm
4 Ohm
8 Ohm
8 Ohm
8 Ohm
8 Ohm
24VDCIn
Call/Mix
Zone 1
Zone 2 Call Only Mix Only
100/70V/8
0 100/70V 0 100/70V 0 100/70V 0 100/70V 0
24VDCIn
Call/Mix
Zone 1
Zone 2 Call Only Mix Only
100/70V/8
0 100/70V 0 100/70V 0 100/70V 0 100/70V 0
LBB1914/10
Call/Mix
24VDCIn
Call Only Mi
x Only
100V 0
70V 0
100/70V 0 100
/70V 0
8
0
Figure 4.9
Figure 4.10