KLING & FREITAG K&F SWi 118E - Manual (Page 6)

User's Manual K&F ‘SW’ Series Subwoofer Systems
KLING & FREITAG GMBH ©1998 - 2015 Version 5.1, 29.05.2015 Page 6 of 6
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 17 (Mounting Instructions for Speakers).
Please note that speakers can move as a result of vibrations. To prevent them from fall-
ing 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 connec-
tions of supporting parts must be checked routinely.
Protecting the Speakers
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.
To protect the speakers from being destroyed and to avoid fire hazard, they should
only be operated with professional power amplifiers with the following specifica-
tions:
− integrated clipping limiter
− without using a Kling & Freitag controller:
Integrated or preceding subsonic filter (approx. 20 Hz, min. 12 dB / octave)
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 liabil-
ity for possible consequential damage.
The following signals may damage the speakers
− permanent high-pitched signals with high frequency, and continuous noise from
feedback.
− permanently distorted signals with high power.
− noises, which occur when the amplifier is on while equipment is being connected,
disconnected or switched on.
Do not install devices in any of the following places:
− where the devices are permanently exposed to direct sunlight.
− where the devices are exposed to high moisture.
− where the devices are exposed to strong vibrations and dust.
Warning
Important