THE GYPSY FACE its a unique take based on the fuzzface from the 66, with a couple of modifications that really make you stand on the killing floor.. All the GYPSY FACE are built with vintage Specs, like 60s Mullard GERMANIUM transistors, vintage capacitors and vintage resistors, all mounted point to point in a vintage baquelita board and the LofiMind Effects mods The Gypsy face can only be powered by 9V batteries. please, if you want an optimal sound use this pedal at the beginning of your pedal chain, the input impedance of this pedal is very low and if you put pedals in front of it they can sound bad.