A type of equalization circuit that has three variable parameters: frequency, cut or boost bandwidth, and Q.
A type of equaliser which has fewer frequency bands to adjust, but the frequency of those bands may be changed, allowing a few parametric bands to do the work of a graphic, except in getting rid of feedback. This type is used on the desk.
equalizer – An equalizer with one or more center frequencies that are variable over a particular range, in addition to boost and cut capabilities. See Graphic Equalizer.