KLING & FREITAG K&F SEQUENZA 10 W - Manual (Page 13)

User's manual K&F SEQUENZA 10 N/W/B & Flying Frame
KLING & FREITAG GMBH © 2014 Version Version 6.1 Page 13 of 70
6.2 Safety Instructions for Stacked Setups
Warning
Falling speakers pose the threat of fatal injuries to people near them!
Be sure to follow the relevant national specifications, norms, and safety regulations.
Always make sure that a sufficient safety level is still given, even when outside forces have
an additional impact on the stacked speakers. Before setup, carefully ascertain if there are
any possible outside forces that could result in the array falling over. (Slant of the ground /
the bearing capacity of the ground / wind / person or vehicle impact, etc.). A technical expert
who is responsible for the setup must evaluate and determine necessary measures (including
calculating the statics). If necessary, obtain expert proof of stability.
For the standard safety inspection, you must always factor in an imperfection (tilt) of +/-5°
and destabilising loads. A planned tilt of the flying frame ist not permissible. In calculations,
the tilted setup serves the purpose of levelling out unevenness.
With the set-up systems for which you cannot verify the structural safety without safeguards,
you must secure them to prevent sliding or tipping in order to provide proof of this safety. To
secure the system from tipping over, use water tanks or floor bolts. Other possible measures
include strapping it to a suitable substructure or tying it using safety straps. The simulation in
the CON:SEQUENZA software is not valid as a verification of structural safety. This software
always states that you must secure stacked speakers to prevent their falling over.
For outdoor and trade fair venues in which wind loads must be considered, additional proof
of stability is necessary.
Only stack the SEQUENZA 10 N/W systems in conjunction with the SEQUENZA 10 flying
frame and the optionally available SEQUENZA 10 Ground Stack Kit (stacking feet), which
is intended to be used. Stacking of SEQUENZA 10 N/W without the optional feet is not
permissible!
Make sure that the stacking feet of subwoofers stacked on top of one another are securely
positioned in the grooves of the lower speaker.
Maximum number of stacked speakers (Valid for indoor operations without wind, with a
person impact of 10 kg at a height of 1.5 m and a flying frame tilt of 5°):
• SEQUENZA 10 N and SEQUENZA 10 W:
arrays with up to 7 x SEQUENZA 10 N/W. To fixate the system to the floor, you can use
the openings in the optional stacking feet (SEQUENZA 10 Ground Stack Kit).
• SEQUENZA 10 B flat:
Arrays with up to 6 x SEQUENZA 10 B
• SEQUENZA 10 B vertical:
Arrays with up to 2 x SEQUENZA 10 B You must additionally secure vertically
standing stacked SEQUENZA 10 B systems from falling since the structural safety is
not guaranteed, otherwise. Possible measures include strapping them to a suitable
substructure or tying them using safety straps.
• SEQUENZA 10 N/W combined with SEQUENZA 10 B
arrays with up to 7 x SEQUENZA 10 N/W on 6 x SEQUENZA 10 B.
SEQUENZA 10 B
If you are stacking a K&F top with feet (i.e. Line 212) on top of a SEQUENZA 10 B subwoofer
that is placed on its side, make sure that the Quick Release Pins have not been damaged in
their stand-by positions.
You must always strap such setups to one another and secure them from falling over.