CONTROL_1_5_V_3_0.DOC
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The speaker-system must never be installed higher than 100 cm without secondary attachment.
Install the desired number of speaker-systems in the room.
Installing and orienting the speaker-system
When installing the speaker-system on e.g. a stage, microphones and turntables should always be located
behind the speaker-systems. In this way, you can avoid dangerous and unpleasant feedbacks. If you cannot
install the speaker-systems this way, the microphones and turntables should be located as far away as
possible from the speaker-systems. When using the speaker-system as monitor-system make sure to avoid
feedbacks.
Avoiding feedbacks
One of the most frequent problems when operating speaker-systems are feedbacks. They can be
recognized by howling and growling loudspeakers. Feedbacks are created then a signal is recorded by a
microphone, amplified, played back by a loudspeaker and then again recorded by the microphone.
The prerequisite for feedback is that the played back signal is louder than the original signal. A feedback
never cover the whole frequency range but only one overboosted frequency.
Make sure that you install especially the monitor-speakers so far away from the microphone that another
recording of the microphone signal is impossible.
Extreme levels like feedbacks, bass-hum or the beats of a dropping microphone can destroy the
loudspeakers within very short time and produce immediate hearing damage. Such extreme levels must be
avoided at any rate. We recommend to use appropriate equalizers and Compressor/limiters.
Installing the speaker-cables
Connect the speaker-systems among each other using the inputs and outputs. Connect the cable of the first
speaker-system with the Output-socket of the mixer. The signal will be transmitted to the individual speaker-
systems.
Always treat the cables carefully and protect them from damages during transportation.
Install the cables always in a structured way and protect them from damage.
The cables must be installed in a way that no person can stumble over them. Always fix the cables with an
appropriate tape.
Both cables should be of the same kind.
Both cables should have the same length.
Both cables should be installed directly (no loops, S-shaped overlengths)
Always install the cables far away from power cables (never closely parallel)
Never put heavy objects like speaker-systems, flightcased etc. on cables.
Never wind up cables tightly around the elbow, but rather sleek with an interior diameter of 20 to 30 cm.
Overhead rigging
Please note:
when using this speaker-system in public or industrial areas, a series of safety instructions
have to be followed that this manual can only give in part. The operator must therefore inform himself on the
current safety instructions and consider them.
DANGER TO LIFE!
Please consider the EN 60598-2-17and the respective national norms during the installation!
The installation must only be carried out by an authorized dealer!
The installation of the speaker-system has to be built and constructed in a way that it can hold 10 times the
weight for 1 hour without any harming deformation.
