OVERDRIVE PEDAL A version of the most famous green overdrive but with more settings, heavier and less transparent. Blues, rock, country, jazz and even hardcore metal guitarists will find it an indispensable tool. In addition to the 3 basic controls of Volume, Tone and Drive, it has a PROOF switch with 2 positions: in the first it behaves like a low-gain tube amp taken to the maximum, with a powerful and colorful boost. In the second you will get more gain, more saturation and more mids, with less sustain. Transforms 9V into 18V to increase dynamics and bass. It works perfectly with any amp and also with the bass, which is why it was originally designed. It operates at standard negative 9V and consumes less than 100mA.