The Lead Expander has been updated with a new control, the original units were set by hand and up to the user to preset. It is the same unit but now you can control with ease for clipping effect. The unit does not color the sound but you can crush the signal to the point it will compress. A great pedal for the player who likes his tone but needs a “lead” channel to punch through the mix. Simple to use with any amp and very great for any style music.