From the source:
The Wizard is a new distortion pedal, inspired by Tony Iommi’s guitar
sound on the early Black Sabbath albums. It is well known that he used a
modified Rangemaster to drive his amps, so the same principle was used
for The Wizard. The first gain stage is essentially a Rangemaster,
using a germanium transistor, but tweaked for a full range boost. That
drives a distortion circuit which has been designed to give something of
the tone and feel of a Laney Supergroup amp. Obviously, there is no
substitute for a full stack at volume, but The Wizard has a similar
distortion character and responds well to picking dynamics.
