Avoiding Feedback - Omnitronic W.A.M.S.-05 User Manual

Before lifting or lowering the telescopic tubes, always block a safety area around the stand or satellite
system. This safety area must have a diameter of 1.5 times the maximum height.
Lifted telescopic tubes always have to be secured with a secondary securing!
The total weight of the installation (=total weight of all individual parts) must never exceed the maximum load
of the installation area.
The stand has to be installed out of the reach of people.
An unintended movement of the load has to be avoided - also in case of fire!
The installer is responsible for adhering to the carrying capacity given by the manufacturer, the safety
requirements and the qualification of possible co-workers.
When people are located below the load, all necessary safety measures have to be taken in order to avoid
injury.
The personnel has to be instructed on the content of the user manual and on the dangers related with
operating stands.
Depending upon the individual installation spot, all necessary measures against movement and for securing
the standing safety have to be created.
The installation is only allowed on carrying areas. In some cases, an appropriate substructure, e.g. via an
balancing foot, has to be created.
When choosing the installation material, optimum dimensions have to be chosen in order to secure
maximum safety.
Loosen the fixation screws of the legs. Pull the legs out until the cross struts stand at a 90° angle to the legs.
Tighten the fixation screws of the legs.
If installing on slippery surfaces, the legs must be secured with screws or nails via the provided
holes or a anti-slippery mat has to be used.
Installation of the TV-pin (only for stands)
Attach an appropriate TV-pin to the top end of the stand and fasten it with the handle at the side.
Suitable TV-pin: EUROLITE TV-35 TV-pin for speakers, No. 60000735
Installation of the speaker-system
Caution: The loads have to be installed in a balanced way.
Caution: The carrying capacity of the stand or speaker stand must never be exceeded!
Install the speaker system via the flange on the speaker stand or via the TV-pin on the stand.
Make sure that the maximum lifting height of the tube is never exceeded.
Lifted telescopic tubes always have to be secured with a secondary securing!

5.3 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. A 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 the wireless microphone 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.
DANGER!
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