A P P L I C A T I O N S
LOUDSPEAKER BASICS
Aiming EVO
Once the optimum height of the EVO loudspeaker has been identified it needs to be aimed to achieve the desired coverage area. The point at which to aim is derived from a simple
Maximum Performance Guideline
You may have noted from Table 1 that the guide does not provide figures above a 40’ installation height. Above a height of 40’ the useful throw and optimized coverage area will not grow, in fact it will probably start to deteriorate depending on the natural acoustics of the room.
The guidelines below can be used to determine the maxi- mum performance achievable for a given loudspeaker height above the listening area.
| Program | Maximum | Maximum |
| Requirement | Height | Throw |
| Speech only | 40’ | 120’ |
Speech + acoustic music | 40’ | 120’ | |
| Amplified live music | 20’ | 60’ |
| Loud, playback music | 20’ | 60’ |
|
|
|
|
+40° | |
140° | 60° |
| |
Optimum | Optimum |
Listening | Listening |
Area | Area |
Using More Than One Speaker
Stereo and Arrays
So far we have discussed the simplest sound reinforcement system configuration, a single EVO loudspeaker. Most applications will require the use of more than one EVOi.324, either because a stereo Left – Right effect is required (see Figure 12)...
Stage |
0° |
( |
Figure 12 - Stereo Left Right Placement
...or additional coverage is required (e.g. for a wider listening area). In this case, two EVOi.324s could be arrayed together as in Figure 13.
Stage
0° | 0° |
Figure 13 - Mono Two Speaker Array
0° | 0° |
+40° |
Figure 14 - Optimum Splay Angle
Figure 14 to the left shows the optimum “Splay Angle” of 60° for a combined optimum horizontal coverage of 140° .
Exactly the same guidelines that are used for one loud- speaker can be used for more than one: the Throw Ratio and Aiming Ratio.
10
EVOi.324
