Equalizers are available as a pedal or as part of an effects unit. An equalizer changes your sound by adjusting certain frequencies but the most basic way of doing this is to start with the settings on your amp.

Guitar controls should generally be set to maximum to provide a strong signal to your amp. Your ears are the quickest guide as you need to be mixed to suit the sound of your band. Amp settings can be adjusted to adapt to factors such as crowd size and the shape of the room.