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5
INSTALLATION
Removing the Mixer and Accessories
When the PA system leaves the factory, the mixer and the accessories are installed in the speakers.
(1) Press
1
To remove the mixer, slide the button on the upper side in the direction of the arrows.
2
The other speaker features a convenient storage compartment for the microphones, antennas, power
cable and speaker cables. Remove the compartment from the speaker and disengage the latch on the
rear to open the cover. Remove the items you need and close the cover again.
Installing and Orienting the PA System
The speakers can be placed as desired or put onto a PA speaker stand via the stand flange on the lower
side. Always install the PA system at a solid, plane, anti-slip, vibration-free, oscillation-free and fire-resistant
location. Before installing the system, make sure that the installation area can hold a minimum point load of 5
times the system's load (e.g. weight 20 kg - point load 100 kg).
When installing a speaker system on e.g. a stage, microphones and turntables should always be located
behind the speaker systems. This way, you can avoid dangerous and unpleasant feedback. If you cannot
install the speaker systems this way, the microphones and turntables should be located as far away as
possible from speaker systems. The speaker systems of a PA system are normally located left and right to
the stage. Do not install the speaker systems on the stage, but rather on appropriate tables or platforms in
front of the stage.
In order to produce a clear sound, the speaker systems should be installed in a way that they throw the
sound over the audience's heads.
Avoiding Feedback
One of the most frequent problems when operating speaker systems is feedback. It can be recognized by
howling and growling loudspeakers. Feedback is created when 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. Feedback
never covers 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. Never hold microphones directly in front of the speaker system!
Extreme levels like feedback, bass hum or the beats of a dropping microphone can destroy the loudspeakers
within a very short time and produce immediate hearing damage. Such extreme levels must be avoided at
any rate. We recommend using appropriate equalizers and compressors/limiters.
Stacking
This speaker system may only be installed on top of another speaker system if both systems are lashed up
with each other via appropriate clamping belts and protected against flipping over.
(2) Slide
29
(3) Lift
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