In the words of Reuss Musical Instruments:

The Reuss Goo Goo Fuzz is a clone of the legendary 1960s Shin-Ei / Univox FY6 Superfuzz pedal. Built to the original schematic and featuring rare vintage new old stock semiconductor parts

Like the original Superfuzz, the Reuss Goo Goo Fuzz offers a wild and crazy, and totally over-the-top, wall of fuzz with an octave-up and slight ring-modulating effect. A breathtakingly complex and frighteningly beautiful, almost overwhelming noise. Unique and addictive. A fuzz sound like nothing else out there. day