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Electro-Voice EVF/EVH User Manual 19
4.0 Preparing EVF and EVH Systems for Installation
4.1 Recommended 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 cluster 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 Passive/Biamp Crossover Configuration
All two-way EVF and EVH systems are shipped in the passive crossover mode. In the center of the input
panel is an external switch card that can change this configuration. See Figure 11. (Note that EVH input
panels, when the systems are in their normal, slanted-sides-vertical orientation, have their long axes ro-
tated 90° with respect to the EVF view of Figure 11.)
Figure 11:
EVF/EVH input panel as supplied, with the passive/biamp
switch card in its full-range passive position
(left position in picture as oriented)