KLING & FREITAG K&F CA 1001 - Manual (Page 5)

User’s Manual CA 1001
KLING & FREITAG GMBH ©1995 - 2006 Version 3.0, 22.03.2006 Page 5 of 27
1. General Safety Instructions for Using Speakers
Mounting the speakers
To prevent injury, the speakers must be securely placed on the floor or secured to the
wall according to the instructions on page 10
( Mounting Instructions for Speakers) .
Please note that speakers can move as a result of vibrations. To prevent them from fal-
ling from their mounted position, they must be secured properly. If the weight of the
speaker exceeds 20 kg then it is necessary for two people to carry it.
Speakers may only be suspended or mounted to walls or ceilings by qualified personnel.
The speakers must be hung by using at least two of the designated flying points. The
same applies when lifting and aligning the speakers.
Never use signal cables or power cords for suspending, aligning or securing the systems.
When laying the connecting cables, make sure that nobody can trip.
Never hang more than two speakers under one another without using the designated
Kling & Freitag rigging equipment.
Ensure that all installation connections comply with the applicable safety guidelines and
that the size and strength are sufficient. Further instructions are in our user's manual for
assembly equipment and in the general safety instructions for speakers and assembly
equipment.
For mobile and fixed installations, use only rigging equipment from KLING & FREITAG.
Make sure to observe the included safety and mounting instructions for loudspeakers
and accessories.
Speakers and rigging equipment must be visually examined at regular intervals. If
there are signs of wear, they must be replaced immediately. Furthermore, screwed
connections of supporting parts must be checked routinely
.
Protecting the speakers / avoiding fire hazard
In general, audio signals should not be overdriven. This may be caused by mixing consoles,
equalizers, effect equipment, etc. and should be indicated on this equipment. When a power
amplifier is overloaded at the output (clipping), then the amplifier should activate a clipping
warning signal. Power amplifiers can also be overloaded at the input circuit without the
amplifier signalling the clipping, i.e. when there is not sufficient headroom in the input cir-
cuit. We, therefore, recommend turning up the power amplifiers all the way and adjusting
the level before the power amplifier in order to avoid overloading the input circuit. In any
case, the signal must be reduced as soon as it sounds unnaturally distorted.
ƒ To protect the speakers from being destroyed and to avoid fire hazard, they should only
be operated with professional power amplifiers with the following specifications:
− Integrated or preceding subsonic filter (approx. 20 Hz, min. 12 dB / octave)
− integrated clipping limiter
− maximum rated power 500W@6 Ohms (equivalent 750W@4 Ohms)
ƒ If you wish to use a speaker with a power amplifier which does not fulfil these specifica-
tions, then the speaker should be controlled using a Kling & Freitag system controller
with limiter function. This is the only way overloading and that the risk of fire can be
avoided. The results of such a power amplifier defect of cannot be avoided by the cont-
roller.
ƒ If power amplifiers have power ratings lower than mentioned above, then it is imperati-
ve that a clipping limiter is used to protect the speaker even if it is used with a Kling &
Freitag system controller.
For damage caused by overloading or use with power amplifiers other than those rec-
ommended above, Kling & Freitag GmbH does not assume warranty and excludes liability for
possible consequential damage.
Warning
Warning
Important