3 Basics of Equalization
In the next illustration, the difference between a narrow Q and a wide Q is seen:
Variable Q
Now we're ready for a visual definition of the term Variable Q. In the next illustration, the wider and more gradual curve represents a lower gain setting for a variable Q equalizer. The narrower and more steep curve represents a higher gain setting at the same frequency:
The previous illustration has been exaggerated somewhat to make the point, but you can see how a lower gain setting also boosts frequencies that overlap to some extent into the regions affected by the next highest and lowest frequency band controls.
Constant Q
In contrast, a Constant Q equalizer has a more consistent range of frequencies under its control throughout its cut/boost range, as illustrated below:
52
