Bosch Appliances LBB 1906/10 Car Amplifier User Manual


 
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).
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.
0
0
0
8Ohm
8Ohm
70V
100V
100V
70V
JP802
100V
0
70V
0
0
+
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24V
24V
CallOnly
0
MixO nly
0
CallActive
8Ohm
8Ohm
70V
70V
100V
100V
JP901
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24V
CallOnly
Zone 2
Zone 1
Call/Mix
Call/Mix
Call/Mix
Call Active
MixO nly
Z1Front
Z2Front
LBB1914/10
LBB1903/10
LBB1906/10
LBB1912/10
JP902
100/70
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External settings and connections
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100/70V
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Call/Mix
24VDCIn
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0
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100/70V
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100/70V
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Call/Mix
24VDCIn
CallOnly MixOnly
4Ohm
4Ohm
8Ohm
8Ohm
8Ohm
8Ohm
LBB1903/10
LBB1906/10
LBB1912/10
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100/70V
Zone2
100/70V
CallOnly
100/70V
8Ohm
MixOnly
100/70V
Call/Mixdirectout8Ohm
4Ohm
4Ohm
8Ohm
8Ohm
8Ohm
8Ohm
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CallOnly MixOnly
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Figure 4.9
Figure 4.10