Electro-Voice EVA Series User Manual
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5.0 EVA Rigging System (cont’)
5.23 Coupler Grid with or without Second Spreader Bar
The EVA-CG is shown in Figure 18. This grid is used to fly up to three
EVA-1151D subwoofer modules in an array behind up to five EVA-
2082S full-range modules and is an ideal solution when subs must be
flown and trim height is limited. The included spreader bar allows for
single-point suspension, two-point side-by-side suspension, or, with
the addition of an optional second EVA-GXB spreader bar, two-point
front-to-back suspension.
Figure 18:
The use of EVA-CG coupler grid
to array EVA-1151D’s behind
EVA-2082S’s
5.24 use of Two Standard Grids
Two EVA-SG2 standard grids may also be used with an EVA array,
one attached to the upper module and the other attached to the lower
module, acting as a pull-up grid. This is a way to achieve extreme down
angles, such as might be encountered in a distributed arena system.
Figure 19 shows this configuration. When using two grids in this fash-
ion, the angle between the suspension lines must never be allowed to
exceed 60°.
Do not use EVA-CG, EVA-EG or EVA-EG2 extended
grids in this application.
For overall down angles of about 45° or
greater, use the third-to-last hole of each grid. For overall down angles
of less than about 45°, use the third-to-last hole on the bottom grid and
any hole forward of third-to-last on the top grid. See Figure 19.
Figure 19:
The use of two EVA-SG2 standard grids to achieve extreme down angles
EVA-SG2
Standard Grid
EVA Module(s)
EVA-SG2
Standard Grid
EVA-CG
Coupler Grid
EVA-GXB
Spreader Bar
