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Electro-Voice® EVA Series User Manual
3.0 Designing an EVA Array (cont’)
Figure 6 shows the Report tab of the EVADA spreadsheet, showing such details as hang points (in this
example, pinholes 18 and 0 on the extended grid), type of hang point (main or pullback), load (lb), mod-
ules in the array and their vertical aiming angles (note that the module inclination angle is the rear panel of
the module).
The Subwoofers tab allows the user to assemble subwoofer arrays and assess the inevitable multiple-
source interference that occurs when two or more arrays are displaced horizontally. This is done by show-
ing the horizontal polar response of subwoofer arrays at three frequencies. The default frequencies are 90,
60 and 40 Hz but can be changed. The option of changing the polarity of each subwoofer and inserting
up to 9.9 ms of delay in any one group of subwoofers is available. These options may be found to smooth
the interference patterns.
The Preferences tab allows the user to change the colors associated with each array element or module.
Refer to the Preferences help file for details.
Figure 6:
EVADA
TM
Report tab, with many physical array details
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