00040340.DOC, Version 1.0
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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 100 V output of the PA amplifier. To facilitate the handling, the
terminals can be removed from their plug-in connections on the unit and replaced after
connection. Connect the amplifier to the positive (terminal 2) and the negative pole (terminal 3) of
the input "IN".
Step 3:
Alternatively it is possible to connect the speaker to a low-impedance amplifier output.
Step 4:
The outputs "LOOP THRU" are connected in parallel to the inputs "IN". They offer the fed-through
input signal.
Step 5
When connecting several speakers, make sure that all speakers have the same polarity and that
the amplifier is not overloaded.
Step 6
Adjust the rotary switch to the desired power rating for the 100 V operation or select the position
8
Ω
, for directly operating the speaker at a low-impedance amplifier output.
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.
