Adjustment - PROEL AXIOM - VERSION 2.0 Manual

6.4. INSTALLATION OF THE SYSTEM

6.4.2 Adjustment

Once the system has been installed and its correct operation has been confirmed, proceed to the regu-
lation of the SUB output.
SUB delay
The presets supplied by Proel with the AXIOM system foresee the mechanical alignment of the satellites
with the subwoofer systems. Therefore the system is correctly aligned when one satellite is physically
above one sub enclosure; the situation shown in figure 6.2.
Figure 6.2: System in a physically superimposed configuration, reference for the alignment of the various output
pass bands in the preset.
In this configuration, the delay necessary for the alignment of the various output pass bands is
already preset by the processor. Figure 6.3 illustrates a situation in which the system is geometrically
aligned, that is if there is no difference in the path of Sub and Satellite
Figure 6.3: System in a configuration with identical paths for Sub and Satellite, with alignment of the various pass
bands preset by the processor.
In the great majority of practical applications, it will not be possible to position the Subs in order to
have an identical acoustical path to that of the flown array. In these cases some electronic correction of
the alignment will be necessary, with additional delay applied to that of the preset for the Sub signal or
for the MID-L/HIGH pass bands
In order to determine the delay to set in the processor, it is necessary to measure the distance
between point P, where the system is pointed, and the position of the Sub and the distance between
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Obviously this is true for a single point: the system is aligned with only one point in the audience, not with the whole audience.
As the distance between the two sources diminishes, the delay can be minimized in larger locations, but this would conflict with
the need to suspend the system as high as possible. As usual, a compromise needs to be found, which is aligning with a point
that is two and a half times the height of the system suspension.
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For instance, the preset provided with EDGE121SP SUB and with AXIOM Systems allows you to set a delay in the SUB or in
the HIGH pass band which modifies the MID-L, too.
 
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6. Operating guide