KLING & FREITAG K&F SONA SUB II - Manual (Page 6)

User's manual K&F SONA SUB II
KLING & FREITAG GMBH © 2014 Version 1.3 Page 6 of 19
2.3 Required signal processor
The following information does not apply to the option "XO" :
When using the SONA SUB II, a signal processor is required such as an electronic crossover or
the K&F Controller CD 44.
The signal processor must provide at least the following settings:
• 1 x high-pass 4th order
• 1 x low-pass 4th order
• 1 x bell filter
Further information in chapter Configuration and Connecting Diagram on page 10 ff.
3. Safety Instructions
3.1 Mounting the Speakers / Wall and Ceiling Installation
Warning
Suspended loads are safety related.
The speakers may only be mounted by qualified event technicians or personnel which are
instructed by them, adequately. This also applies for wall and ceiling fixations.
The technicians responsible for assembling the speakers on site are responsible for the safe
setup and use of the speakers and guarantee the safe use of the mounting elements.
Never use signal cables or power cords for suspending, aligning or securing the systems.
Before carrying through ceiling and wall installations, it is essential to consider the load
capacity, the stability and type of the construction of walls, ceilings and panelling. If there is
wall panelling, for example, it is then necessary to examine the solidity of the wall and use
the appropriate wall plugs.
Note that the suspension points on the hall ceiling (i.e. shackles, suspension points, or chain
points) must comply with the accident prevention regulation BGV C1 (Event and Production
Sites for Stage Presentations) or comparable applicable national standards, and the total load
must be approved by an authorised expert.
Make sure to comply with the stipulated tightening torques.
If not otherwise stated in this manual, only original KLING & FREITAG parts may be used for
mounting the speakers. The use of other parts – in particular parts by other manufacturers –
is not permitted in this case.
Ensure that all installation connections comply with the applicable safety guidelines and that
the size and strength are sufficient.
Ensure that all connections are secured against coming loose and that only authorized,
statically tested and correctly sized supports, mounting equipment, wire ropes and chains are
used.
As a basic principle, you must visually inspect all safety-relevant components of the speaker
and the accessory before every use. If there are signs of wear, cracks, or deformation, then
you must replace the parts immediately. The visual inspection also includes checking the
screwed connections on supporting elements.
The information described here does not relieve the user of the duty to follow the given
safety requirements and legal regulations.
3.2 Notes for Mounting the Speakers
Warning
Mount the speakers securely. To avoid injury or damage, always be sure to mount the
speakers securely so that they do not fall.
Please note that speakers can move as a result of vibrations. To prevent them from falling
from their mounted position, they must be secured properly.