Amate Audio X210 Manual De Usuario página 47

X210/X215W/X218W3K/X21T Oct 2017
d) X210 Stacking on X218W/X21T
You need: FR-X210 kit stacking
12. TIME ALIGNMENT IN PA SYSTEMS
In common PA systems the frequency range is divided into different ranges which
are reproduced using different cabinets (subwoofers for the bass range and top
cabinets for the mid-high range). This means different locations and positions of the
sound sources.
This leads to some interferences in the crossover range, causing notches and peaks
in that area. Time alignment (delay) tries to adjust the arrival time of sound so that in
the crossover area it arrives at the same time.
Fig.41.This system is not completely aligned because d1 and d2 are not equal.
If we do not put a delay on the subwoofer cabinets we may notice a dramatic
cancellation in the frequency range being shared by both cabinets or in the
crossover frequency between the subwoofer units and the top units.
47
Amate Audio