Proportional-Q filter response 223
XL8 Control Centre
Operator Manual
Figure 6: Symmetrical-Q equaliser ‘narrow’ mode ±2dB boost and cut
While the 'wide' response is obviously preferable for small amounts of boost and cut,
Figure 7 and Figure 8 show the problem that occurs with using this response for full
boost and cut, where far more of the audio spectrum is affected by each of the bands
being broader as a consequence of maintaining the same Q value.
Figure 7: Symmetrical-Q equaliser ‘wide’ mode full boost and cut
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