Sonnox Oxford EQ including GML - Manual (Page 15)

6 SHELVING SECTIONS
6 Shelving
Sections
In the Oxford EQ, the highest and lowest bandpass sections can be independently
switched to provide a shelving function. Although shelving functions are often considered
elementary, they are by no means all the same, and their importance to the sound
engineer should not be underestimated. Various types in common use are considered to
favour certain types of use or are considered preferable by users of differing
persuasions.
Our analysis of common shelving EQs has shown that one of the most important
differences in the sound of the shelving EQ is the response around the band immediately
below the HF section (and above the LF section). Many of the most loved classical EQs
have a degree of ‘undershoot’ in this region (when in boost), either by design or as a result
of circuit limitations in legacy units. Therefore most units can be characterised by control
within this region of the frequency response. In appreciation of the importance of this
parameter, the Oxford EQ provides the facility to modify the response in this region, and
so provide differing styles of shelving EQ.
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