Sonnox Oxford EQ including GML - Manual (Page 16)

6.1 ShelvingOvershootControl(HF shelfQ control) 6 SHELVING SECTIONS
6.1 ShelvingOvershootControl (HF shelfQ control)
When the HF shelving function is selected, the Q control provides control of the
‘overshoot’ function.
With the Q control set to minimum (yellow plot) the section has no overshoot and
performs a basic and accurate shelving function. This is most like the responses provided
by the original SSL 4000 EQs and many other outboard units often described as ‘clean’
EQs. Although these are still very popular units, some engineers complain that they can
sound harsh and overbearing in comparison with legacy EQs.
As the Q control is increased, the overshoot factor is also increased. For example, the red
plot shows a slight dip in the response at around 1.5KHz for a boosted HF setting of
6KHz. This has the effect of suppressing the perceived mid range boost that occurs with
the previous ‘clean’ variety, reducing the apparent ‘hardness’ of the sound. This, along
with the increased slope rate, provides more apparent definition to the EQ in the band of
interest.
The purple plot shows the effect of the Q control in its mid position. This produces a gain
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