This is an octave fuzz overflowing with vintage character utilizing specially selected diodes. It covers not only a range of one octave up but also two octaves down. You can choose three types of octave settings: +1 or -1 and -2 or all upward and downward octaves to obtain thick vintage fuzz sounds. In addition there's a tone control for +1 octave and a volume control for -2 octave. Since the Trike Fuzz operates the downward octave circuits in series and combines them in parallel with the upward octave at the end you can create a diverse range of sounds that cannot be obtained with existing octave fuzz units.