7
Shock Loading
When a load is moved or stopped, its static weight is magnified. Sudden movements can magnify the static weight several times. This is
called "shock loading."
The effects of shock loading can be instantaneous, or it can remain undetected. Proper preparation for shock loading requires careful
planning and knowledge of equipment, suspension, and lifting practices. Shock loading is most often the result of lifting and installation,
but natural forces (winds, earthquakes, etc.) can create shock loads several times the static load.
Shock loading poses a danger to equipment and workers. Because of this, structures and suspension equipment must be capable of
supporting several times the weight of the suspended equipment.
Maximum Suspended Load
The following table provides Working Load Limits (WLL) at varying Safety Factors (7:1, 10:1, or 12:1) for the LA108 and LA112 active
line array loudspeakers and companion rigging accessories.
The data presented below is based upon the listed component weights. The tabulated Working Load Limits represent static loads only.
Dynamic and shock-load conditions are determined by unknown, installation-specific factors. The choice of which Safety Factor to
follow will depend upon the jurisdiction, venue of installation, and conditions of suspension.
Refer to a Licensed Structural Engineer for clarification before proceeding with suspension.
Working Load Limits
Model
Individual
Component Weight
7:1 Safety Factor
10:1 Safety Factor
12:1 Safety Factor
LA108
13.7 kg / 30.1 lb
241.3 kg / 532 lb
169.2 kg / 373 lb
140.6 kg / 310 lb
LA108 M10 Pullback Point
Built into rear of product
92.1 kg / 203 lb
64.4 kg / 142 lb
53.5 kg / 118 lb
LA112
21.4 kg / 47.2 lb
235.4 kg / 519 lb
178.4 kg / 378 lb
149.6 kg / 330 lb
LA112 M10 Pullback Point
Built into rear of product
80.3 kg / 177 lb
56.2 kg / 124 lb
46.7 kg / 103 lb
LA108-AF
10.7 kg / 23.7 lb
234.9 kg / 518 lb
164.6 kg / 363 lb
126.1 kg / 278 lb
LA112-AF
11.5 kg / 25.4 lb
235.8 kg / 520 lb
165.1 kg / 364 lb
137.4 kg / 303 lb
LA-KIT-I*
4
LA108
3
LA112
* Included bridled angle to be 90° or less.
FCC Statements
LA108 Loudspeaker
NOTE:
The LA108 active line array loudspeaker has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment
generates, uses, and can radiate radio frequency energy. If not installed and used in accordance with the instructions, it may cause
harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.