To enrich with a lot of colours your sound you don't need to have very complex equipments, it is enough that you play with your usual equipment passing through Overtone. This unit has 2+1 channels that allows you to know the Brunetti sound very well. Overtone can create innumerable sound combinations: from the warm and fat tones to the most aggressive metal. You can play it as a preamp, connected to a power amp; or as a speaker emulation going directly to the recording or mixing system. You can even use both those functions at the same time. Thanks to its use flexibility and to its winning sound, It is one of the most "true" and powerfull foot pedal. Overtone is all tube.