Garmin EVA-2082S/920 Preparing EVA Modules for Installation, Recommended Preflight Procedures

4.0Preparing EVA Modules for Installation

4.1Recommended Preflight Procedures

For any installed sound system, certain checks made at the installer’s place of business can prevent ex- pensive on-site delays. A short-list follows, and sets the stage for proper array performance:

1.Unpack all loudspeakers in the shop.

2.Check for proper model numbers.

3.Check the overall condition of the loudspeakers.

4.Check for continuity at the loudspeaker inputs.

It is a good idea, once on site and the loudspeakers are connected, to check again for continuity at the power-amplifier end.

4.2 Module Configuration

After the EVADA software has been used to design an appropriate array, the high-frequency (HF) shading or use of the optional attenuation modules should be noted. In this way, these settings and options can be configured on the systems as they are rigged together and suspended. (The shading adjustments and installation of attenuation modules can be completed at the installer’s shop but then care must be taken to see that the EVA modules are properly identified to avoid misassembly of the array in the field.)

Figure 11 shows an EVA HF shading switch card. This card comes pre-inserted in the “Center = Both @ 0 dB” position, indicating no shading of either HF element.

Figure 11a:	Figure 11b:	Figure 11c:
EVA input panel as supplied,	EVA input panel, with the	EVA input panel, with the
with the high-frequency (HF)	switch card inserted to shade	switch card inserted to shade
shading switch card in its	the lower HF element 3 dB	the upper HF element 3 dB
central, 0 dB position

Electro-Voice® EVA Series User Manual 17