Bosch Appliances PLE-2MA240-US, PLE-2MA120-US Connecting speakers, Constant voltage loudspeakers

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Plena Mixer Amplifier Installation and User Instructions Connections and settings

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4.2.5 Connecting speakers

4.2.5.2 Low impedance loudspeakers

4.2.5.1Constant voltage loudspeakers

figure 4.9: Connecting speakers

figure 4.8: 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.

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.

Bosch Security Systems 2007-10 PLE-2MA120-US, PLE-2MA240-US en

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Plena Mixer Amplifier Important safeguards Alerts on the apparatusPage Thank you for choosing a Bosch Security Systems product Table of contents Operation Introduction Conversion tables Conversion of units of massContents of box DescriptionPlena product range Plena Mixer AmplifierSchematic overview of the Plena Mixer Amplifier Controls, connectors and indicators Front panelPlena PLE-WP2Z3S wall panel Rear panel Rear panel Intentionally left blank Installation Install unit in rack optionalCheck settings/connections Unpack unitIntentionally left blank Connections and settings Connecting inputsDC supply battery Euro connector with trigger Priority microphone inputSecondary microphone input Additional microphones inputs 3 throughConnecting 70 Volt input signal Emergency inputs Connecting emergency telephone lines Connecting music source inputs Music source inputsConnecting outputs Zone 1Call only Music onlyConnecting speakers Constant voltage loudspeakersUnit settings Rear panel settingsRotary controls Pin settings and labelling Intentionally left blank Switch on and off Switch offSwitch on OperationMicrophone/line controls Music controlsTone control Master volume control Output controlsZone selection Intentionally left blank Technical data ElectricalMechanical EnvironmentalPage For more information visit
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