The instrument
The Marshall 2023 Supra-Wah pedal followed the Supa Fuzz in 1969. It was also produced by Sola Sound and is comparable to the Colorsound Supa Wah. Unlike most wah pedals, it had two TI 2G374 germanium transistors with low gain, which provided a soft sound and singing highs. These were later replaced by silicon transistors, which provided more bass and depth.