Avoiding Feedbacks - Omnitronic W.A.M.S.-04 User Manual

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 personell 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.
The system must never be moved before the top speaker is uninstalled!
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!

6.3 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.
Never hold the wireless microphone directly in front of the speaker-system!
DANGER!
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