zapco HDSP-V AD-A, Руководство пользователя

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When you open the phase page you will see that the frequency choice has already been made by
default at the high pass crossover frequency of all channels except the subwoofer channels, which needs
only low pass filters. This is because almost all times a phase shift is used it is to correct a frequency null
(no sound) caused by the inherent phase shift made by the crossover filters. In the example above the
HP filter of the woofer has been changed to better blend with the Subs.
You can adjust both Frequency and Shift roughly by dragging the slider buttons to the desired location.
You can also adjust either using the right and left arrow keys on your keyboard. This can adjust quickly
or adjust by single frequencies (or single degrees).
Always keep in mind that a Phase shift affects all frequencies of a channel. When you change the phase
at one frequency you change the phase of all frequencies in that channel. But, since they are different
wave lengths they will be adjusted by a different amounts. If you are making Phase adjustments, you
must keep an ear to all frequencies as it is possible to fix one frequency but create a new problem at
another frequency. Be listening while you make changes and make only enough to fix the problem.
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