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.