This guitar overdrive pedal has a characteristic mid-range boost, and is legendary amongst blues players, as well as those of many other genres. With a simple three-knob layout of distortion, tone and volume, the pedal is straightforward to use but also allows a good control over the guitar tone and texture. The pedal accentuates the mid frequencies between bass and treble, which for guitarists can mean that they don’t get lost in the overall mix of the band. Many guitarists favor this pedal, notably Stevie Ray Vaughan, and indeed a lot of other highly regarded overdrive pedals owe their heritage to the tube screamer circuit.