Today's Lesson

Graphic equalizers consist of multiple graphical sliders that producers and audio engineers use for altering and controlling the frequency response of an audio system.

Professional sound-reinforcement graphic EQs generally have 31 bands. The center frequency of each band is spaced 1/3 of an octave away from the center frequency of the adjacent bands, so that three bands (or 3 sliders) equal a combined bandwidth of one octave.

Graphic EQs are best-used to fine-tune the overall mix for a particular room.

Graphic EQs are also useful when mixing stage monitors as they allow for easy access to many frequencies to quickly eliminate microphone feedback on stage.

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