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Connecting Speakers - Bosch Plena PLE-1MA030-US Installation And User Instructions Manual

Plena mixer amplifier
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Plena Mixer Amplifier | Installation and User Instructions | Connections and settings
4.2.4

Connecting speakers

4.2.4. 1
Constant voltage loudspeakers
figure 4.7: Connecting speakers
The mixer amplifier can drive 70 V constant voltage
loudspeakers.
Connect the loudspeakers in parallel and check the
loudspeaker polarity for in-phase connection. The
summed loudspeaker power should not exceed the
rated amplifier output power.
You can use the Call Only output for 3-wire remote
volume control override. You can also use this output as
an extra zone where announcements can be heard, but
not music.
Bosch Security Systems | 2007-12 | PLE-1MA030-US, PLE-1MA060-US, PLE-1MA120-US en
4.2.4.2
Low impedance loudspeakers
figure 4.8: Connecting speakers
Connect low impedance loudspeakers to the 4 Ohm/0
terminals. This output can deliver the rated output
power into an 4 Ohm load. Connect multiple
loudspeakers in a series/parallel-arrangement to make
the combined impedance 4 Ohm or higher. Check the
loudspeaker polarity for in-phase connection.
en | 23

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