The Costalab Good Devil is an original design overdrive based on a Op-Amp with ten-times specification values over the standard Mosfet competitors. The result is an outstanding low noise tone at any level and an unbelieveable gain reserve that trespasses in distortion territory. The Good Devil works as a real tube amp in terms on dynamic and saturation, with the “Blade” knob that helps you shape the tone even more, changing attack and compression of the note like switching between a Valve and a Solid State rectifier. In conjunction with a distortion pedal, like the Costalab Bad Angel, the Good Devil will help provide infinite singing sustain, complex and expressive notes and well defined fast solos will be at your fingertips.