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VTX A8 | User Manual
10.4 - TIME ALIGNMENT
The VTX A8 presets provide proper system summation with companion VTX subwoofers (all models) under physically coupled config-
urations (stacked or suspended) and when used with corresponding B18, G28, S28 and S25 presets. This pre-alignment is done at the
factory, allowing any VTX subwoofer to be used with any VTX loudspeaker without needing specific subwoofer presets for each system
and configuration.
Additional time alignment delay should be added, as necessary, to account for physical path length differences between suspended
A8 arrays and ground-stacked VTX subwoofers. If no acoustic measurement system is available, delay values can be calculated based
on the geometric path difference between a reference point (i.e. FOH position) and each system. This is an effective method since all
VTX presets include a factory pre-delay to correctly align all components. This method is not effective and should not be used when
the latency of a system is unknown, such as when different parts of the system follow a different signal path that might affect latency.
dSub
dSub
dFlown Array
Path Diff
Path Difference = dFlown Array - dSub
Sub Delay =
Path Difference (meters)
343 (meters / second)
Sub Delay =
Path Difference (feet)
1140 (feet / second)
or
VTX A8 VTX B18 VTX S28 VTX G28
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