Bosch Plena Power Amplifier - Loudspeaker Output Connections; Power Supply Connection

Bosch Security Systems | 2006-11 | 9922 141 50751en
Plena Power Amplifier | Installation and User Instructions | Amplifiers en | 16
3.5.5 Constant voltage loudspeakers
The power 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.
3.5.6 Low 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.
3.5.7 Power
Use the mains lead to connect the amplifier to the
power supply.
figure 3.10: Priority input and control terminals
1
0
0
V
0
1
0
0
V
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Priority Controlled Output
24V DCIn
100V 70V008
Direct O utput
Priority Only
No Priority
70 V100 V
8 Ohm
8 Ohm
8 Ohm
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LBB1938
figure 3.11: Mains lead
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ain P
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atter
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