An EQ Pedal is a great way to quickly change the shape of your tone. They usually come in the format of a Graphic EQ, similar to what you find in larger Rack Units. An EQ Pedal allows you to completely change the dynamics of your amplifier at the flick (or stomp!) of a switch. You can use an EQ Pedal to boost your amplifier with extra gain or scoop the mid range for a different overdrive tone and texture.