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Rigging procedures
Stacking a Kara standalone array
Using M-BUMP
Modeling and safety
A Kara array must be stacked onto an M-BUMP/M-BAR/M-JACK platform (platform stacked array). The platform provides
tilt adjustments in case of slope surface and increases the array stability.
Any platform stacked array must be modeled before installation so as to ensure acoustical conformity. This can be done
using L-Acoustics Soundvision Software which will assist the user to:
• Determine the number of required Kara enclosures.
• Calculate the inter-enclosure angles.
A platform stacked array can be composed of a maximum of 9 Kara enclosures along with all loudspeakers
cables (refer to Mechanical safety (p.26)).
The platform must be installed in rear extension conguration if the Kara array is intended to have a positive site
angle (refer to Stacking platform conguration (p.195)).
The platform must be installed in front extension conguration if the Kara array is intended to have a negative site
angle (refer to Stacking platform conguration (p.195)) and a at shape (all inter-enclosure angles are close to
0°).
The Kara and M-BUMP fully integrated rigging systems allow assembling the array with no need for any external
accessory. The following rst procedure describes how to mount a vertical Kara platform stacked array. The second
procedure describes how to disassemble the array.
Array mounting
About this task
All along the procedure:
Strictly follow the sequence of the successive steps.
Systematically verify that each BLP is fully inserted.
Systematically verify that each bolt is fully screwed in and secured with pin.
For clarity purposes the loudspeaker cabling procedure will not be described.
The loudspeaker cables will not be represented on the gures.
Procedure
1.
Place an M-BUMP at the rigging location. Turn it so that the text of the identication plate is upside down and the
laser slits are directed towards the audience.
2. Mount two M-BAR/M-JACK assemblies as follows (repeat for each M-BAR):
a) Remove the safety pin (see Safety pin removal and insertion (p.199)) and the bolt from a shackle.
b) Place an M-JACK under one end of an M-BAR and align the M-JACK hole with the second M-BAR hole.
c) Secure by inserting the preceding bolt and safety pin.
d) Repeat the procedure to attach a second M-JACK to the other end of the M-BAR.
90 Kara owner's manual (EN) version 1.0