EQ Pedals

Equalizer: An equalizer is a set of linear filters that strengthen ("boost") or weaken ("cut") specific frequency regions. While basic home stereos often have equalizers for two bands, to adjust bass and treble, professional graphic equalizers offer much more targeted control over the audio frequency spectrum.[66] Audio engineers use highly sophisticated equalizers to eliminate unwanted sounds, make an instrument or voice more prominent, and enhance particular aspects of an instrument's tone.[67]