5.0 EVA Rigging System (cont’)
A second spreader bar, EVA-GXB, is available. The second spreader bar is used when two front-to-back pickup points are desired/required. Figure 16 shows an EVA-SG grid with a second spreader bar. When two spreader bars are used, one is attached to the extreme front hole positions in the side arms and the other is attached to the extreme rear position. This gives the most control over the vertical aiming of the array. Note that the need to maintain sufficient load on the front spreader bar to maintain rigging tension will diminish the amount of down angle available with a standard grid. For this reason the EVA-EG extend- ed grid is probably a better choice when using front-to-back pickup points.
Standard (EVA-SG) | |
Sidearm | Second (EVA-GXB) |
| Spreader Bar |
| Standard (EVA-SG) |
| Sidearm |
Spreader Bar | Figure 16: |
|
| EVA-SG standard grid with optional |
| EVA-GXB spreader bar |
| EVA Module(s) |
| (Not Included with Grid) |
5.22 Extended Grid with or without Second Spreader Bar
The EVA-EG extended grid is also available. Arrays taller than four modules will probably require the extended grid, whose side arms are 12 inches longer to the rear. Three- to four-module arrays that have extreme down angles will also require the extended grid. Figure 17 shows the extended grid.
Second (EVA-GXB)
Spreader Bar
Extended (EVA-EG)
Sidearm
EVA Module(s)
(Not Included with Grid)
Figure 17:
EVA-EG extended grid (shown with optional EVA-GXB spreader bar)
22 | Electro-Voice® EVA Series User Manual |
