RCF HDL 12-AS Owner's Manual page 8

WARNING
• The safety factor is the result of the forces acting on fly bar's and system's front and rear links and pins and
depends on many variables:
- number of cabinets
- fly bar angles
- angles from cabinets to cabinets. If one of the cited variables change the safety factor MUST BE recalculated using the
software before rigging the system.
• In case the fly bar is picked up from 2 motors make sure that the fly bar angle is correct. An angle different from the
angle used in the prediction software can be potentially dangerous. Never allow persons to stay or pass under the
system during the installation process.
• When the fly bar is particularly tilted or the array is very curved the centre of gravity can move out from the rear links.
In this case the front links are in compression and the rear links are supporting the total weight of the system plus the
front compression. Always check very carefully with the "HDL 6-A Shape Designer" software all this kind of situations
(even with a small number of cabinets).
System particularly tilted
PREDICTION SOFTWARE – SHAPE DESIGNER
HDL 6-A Shape Designer is a temporary software, useful for the setup of the array, for mechanics and for proper preset
suggestions.
The optimal setting of a loudspeaker array cannot ignore the basics of acoustics and the awareness that many factors
contribute to a sonic result that matches expectations. RCF provides the user with simple instruments that help the
setting of the system in an easy and reliable way.
This software will soon be replaced by a more complete software for multiple arrays and complex venue simulation with
maps and graphs of the results.
RCF recommends this software to be used for each type of HDL 6-A configuration.
System very curved