Mad Professor Amber is a fat and smooth overdrive pedal. One of the most sought after guitar tones is a combination of a great overdrive or fuzz pedal into overdriven tube amplifier. Amber Overdrive produces this sound even when running though a clean amplifier. It produces a very thick sound whether playing chords or single notes - fat and juicy with just a hint of fuzz. Though highly saturated, this dynamic overdrive can be cleaned up with the volume control of your guitar. As with all Mad Professor pedals, it offers a wide range of dynamics and expressive touch sensitivity. When you plug it into a clean amplifier, Amber Overdrive can give you the massive sound of a saturated amplifier running wide open. It can also be used as a slightly distorted boost to increase saturation on slightly overdriven amplifiers. NOTICE: Amber Overdrive is a medium input impedance device that places a light load on your guitar pickups to produce a smoother tone. it will work best as the first pedal in the chain. if you run a buffered pedal ahead of Amber Overdrive you will get an increase in treble and upper midrange.