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GROUND-STACKED, UPWARD FIRING ARRAYS
Applications such as covering stadium bleachers from the playing field may be addressed by installing the array
frames to the bottom of the array.
Up to four VRX932LAP loudspeakers may be locked together and ground
stacked using the VRX array frame kit, as shown.
WARNING:
Do not ground stack more than four VRX932LAP loudspeakers
in one array.
When ground stacking VRX932LAP loudspeakers, use the VRX-AF array frame
as the base (as shown) by attaching the loose drop levers, included in the array
frame kit, to the lower rigging bar on the VRX932LAP loudspeaker. When
stacking the loudspeakers together, make sure each loudspeaker is locked
together. Be certain that the surface on which the system is to be stacked is flat,
stable and solid.
SUSPENSION IN PERMANENT INSTALLATIONS
For permanent installation applications a VRX array may be suspended using M10 eyebolts. Only load-rated,
forged shoulder eyebolts are to be used. A kit consisting of three (3) forged shoulder eyebolts is available from
JBL Professional as part number 229-00009-01. Suspension of the VRX array must employ both top attachment
points. The subwoofers must always be at the top of the array.
Eyebolt Suspension
The following table defines the maximum number of speakers that may be suspended using the two M10
eyebolt attachment points provided on the cabinets. A minimum design factor of 7:1 is maintained for all speaker
configurations at or below those indicated in the table.
EYEBOLT SUSPENSION
ARRAY FRAME SUSPENSION
Maximum number of VRX918SP in array
0
2
3
3
4
4
Maximum number of VRX932LAP in array
5
4
3
2
1
0
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