Deciding Which Grid Configuration To Use; X12Tc-Grid Compact Grid - Electro-Voice X1-212/90 Installation Manual

X-LINE ADVANCE Systems
6.4

Deciding which grid configuration to use

Choosing a grid is determined by the system down or up angles in combination with the
number of elements in the array and the splay angle between them. To determine which grid
model will achieve your desired angle or where the safety limitations are for the arrays, please
use LAPS 3 to design your array, and observe all warnings and limitation messages displayed
by the software.
6.4.1

X12TC-GRID compact grid

The X12TC-GRID compact grids are appropriate for arrays where extreme up or down angles
are not required. It is rated for a maximum hang of up to 24 X1 or X2 elements in a single
column. Use LAPS 3 to determine if X12TC-GRID combined with the number of elements will
achieve the acoustical coverage in the venue at a safe working load. For more information, see
Rigging structural strength ratings and safety factors , page 54
Notice!
X12TC-Grid comes with one (1) spreader bar only. The use of a second spreader bar is not
recommended with this grid.
X12TC-GRID includes one (1) spreader bar and two (2) sidearms. The spreader bar has four
(4) 0.84-inch (21.4 mm) holes through it for use as attachment points. The hole near the
center of the bar labeled PICK HERE is used for lifting a single point hang. This hole is slightly
off-center to compensate for the center of gravity of the respective X1 and X2 systems.
Pay close attention to which way the spreader bar is oriented with respect to the loudspeaker
systems. Compare the wording on the left end of the spreader bar to the input panel label on
the loudspeaker. For an X1 system, the bar should read X1 THIS SIDE TO REAR and for an X2
system it should read X2 THIS SIDE TO REAR.
Caution!
Verify the correct spreader bar orientation before lifting the array.
!
Failure to comply with this instruction results in the entire array tilting to one (1) side at an
unsafe angle.
Figure 6.3: X1/X2 spreader bar
The hole labeled SAFETY HERE is for attachment of a safety line if required by local
regulations. If used, ensure there is minimal slack in the safety line but it is not so tight as to
interfere with the vertical alignment of the array hanging from the pick point. The two (2)
2015.04 | 02 | F.01U.310.953 Installation Manual Electro-Voice