This is the new overdrive pedal by Favorettis. The pedal has a power supply feature that converts standard power supply +9V in +16V/-8V. By this way the headroom is increased in order to get one of the warmest over driven tone you never heard. Further, this box may be adjusted internally by three small trim pots knobs, presence, bass and voice. The IC is a OP275 which sounds very clear in comparison with others.