00036235.DOC, Version 1.1
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4.2 Choosing an appropriate PA amplifier
This speaker must only be connected with an appropriate PA amplifier. Observe the correct power matching.
The total load presented to the amplifier must not exceed the rated output of the amplifier.
Before starting with the installation, you must clarify how many speakers you would like to install in the room.
4.3 Electrical connection
DANGER TO LIFE!
High voltage at terminals. Installation by skilled personnel only! Turn off PA system before connecting.
Cabling a PA system is an electric installation which must only be carried out by a qualified electrician!
Always insulate the connection cables which are not used. Pay attention to the correct power matching.
Overload will result in damage of the PA amplifier and of the speaker.
Procedure:
Step 1:
If the PA system is turned on, turn it off before making any connection.
Step 2:
Connect the speaker to the amplifier: Connect the negative pole and the positive pole to the
100 V output of the amplifier.
Step 3:
When connecting several speakers, make sure that all speakers have the same polarity and that
the amplifier is not overloaded.
5. OPERATION
Switch on the amplifier and adjust the volume. Always make sure that the output signal is not distorted and
that your speakers will not get damaged.
During operation, please make sure the speaker always sounds well. When distortions can be heard, either
the amplifier or the speaker is overloaded. Overloads can quickly lead to amplifier or speaker damage.
In order to avoid damage, please reduce the volume immediately when distortions can be heard. When
speakers are destroyed by overload, the guarantee becomes void.
Always check the sound pressure level with a meter in order to keep to the threshold.
6.
CLEANING AND MAINTENANCE
The operator has to make sure that safety-relating and machine-technical installations are inspected by an
expert after every four years in the course of an acceptance test.
The operator has to make sure that safety-relating and machine-technical installations are inspected by a
skilled person once a year.
The following points have to be considered during the inspection:
1) All screws used for installing the speaker systems or parts of the speaker system have to be tightly
connected and must not be corroded.
2) There must not be any deformations on housings, fixations and installation spots (ceiling, suspension,
trussing).
3) The electric power supply cables must not show any damages, material fatigue (e.g. porous cables) or
sediments. Further instructions depending on the installation spot and usage have to be adhered by a
skilled installer and any safety problems have to be removed.
We recommend a frequent cleaning of the speaker system. Please use a soft lint-free and moistened cloth.
Never use alcohol or solvents!
