parametric EQ

A parametric EQ is an equalizer that lets you target specific frequencies with one control and boost or cut that frequency with another, with Q sometimes adjustable¹. It provides detailed control with continuous sweep across ranges of the audio spectrum, normally using knobs, with boost or cut gain at a chosen frequency measured in hertz². Low Q settings sound like a traditional EQ, while higher Q adds resonant nodes³. In pedal form it appears as standalone units⁴, as EQ stages inside fuzz and overdrive pedals⁵⁶, and in preamps and compressors⁷⁸.