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The Mary-K is JHS's tribute to the rare Kay Fuzz Tone from the late 1960s, originally released as a low-cost alternative to the Shin-ei/Univox Superfuzz. Known for its raw, compressed fuzz and distinctive midrange bite, the Kay Fuzz Tone became a cult favourite, famously used by The Edge of U2.
JHS reimagines the circuit with modern enhancements, including Volume and Frequency knobs and an expression pedal input for real-time control of the Frequency parameter. This allows players to replicate the original treadle-style interaction or explore dynamic tone shaping on the fly. The pedal delivers aggressive, vintage fuzz with a gritty edge and wide tonal sweep.
Built in Kansas City and housed in a rugged enclosure, the Mary-K runs on standard 9V DC or a single 9V battery. It consumes just 4mA and is compatible with most TRS expression pedals.