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ALPHA ARRAYS - SOME BASIC RULES
ALPHA SERIES USER MANUAL V1.0
DATE: 14/01/00 18:27
The only situations where such arrays can be assembled with very little angle are long throw
applications (very small vertical coverage) because the interferences are less significant at large
distances from the array.
Large Arrays (4 Alphas M3 / M8 and above)
Construction of large arrays derives from important SPL requirements rather than large listening
angles: although the Alpha M3 is a high Q cabinet, 4 boxes are enough to cover a 140° horizontal
plane. Therefore, large arrays will usually assemble cabinets at less than their nominal coverage
angle.
Measurements and simulations show that when using a large amount of cabinets, the individual
behaviour of a cabinet will determine the roll-off on the limits of the coverage zone, and the
architecture of the array will be responsible for the behaviour in the coverage zone.
For examples of suitable cabinet configurations please refer to the Alpha System Flying Manual
and to subsequent technical notes.
