Bosch Appliances PLE-2MA120-EU manual Connecting speakers, Constant voltage loudspeakers

Page 22

Plena Mixer Amplifier Installation and User Instructions Connections and settings

en 22

4.2.5 Connecting speakers

4.2.5.2 Low impedance loudspeakers

4.2.5.1Constant voltage loudspeakers

figure 4.11: Connecting speakers

figure 4.10: Connecting speakers

The mixer amplifier can drive 100 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 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.

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

Image 22

Contents Plena Mixer Amplifier Important safeguards Table of contents Operation Digital document Intended audience IntroductionPurpose Related documentationConversion tables Conversion of units of massPlena product range Contents of boxDescription Plena Mixer AmplifierSchematic overview of the Plena Mixer Amplifier Front panel Controls, connectors and indicatorsPlena PLE-WP2Z3S wall panel Rear panel Rear panel Intentionally left blank Check settings/connections InstallationInstall unit in rack optional Unpack unitIntentionally left blank Connecting inputs Connections and settingsDC supply battery XLR connector only Priority microphone inputSecondary microphone input Additional microphones inputs 3 throughConnecting 100 Volt input signal Emergency inputsConnecting emergency telephone lines Connecting music source inputs Music source inputsCall only Connecting outputsZone 1 Music onlyConnecting speakers Constant voltage loudspeakersUnit settings Rear panel settingsRotary controls Pin settings and labelling Intentionally left blank Switch on Switch on and offSwitch off OperationMusic controls Microphone/line controlsTone control Output controls Master volume controlZone selection Intentionally left blank Technical data ElectricalMechanical EnvironmentalPage For more information visit