This is a must-have for any guitar/bass player who wants total control of his sound, allowing you to boost or cut anything from 160Hz to 2.5KHz. If you want to cut thru the mix, get rid of some unwanted resonance, or just shaping your sound a little more, this is an excellent pedal!! Here’s a couple vids so you can see how it works in both guitar and bass Bass (demo with Vail Johnson) Guitar (demo with Steve Stevens) Thanks!!!