We set out to create a circuit that dynamically combines mid-range fuzz pedals with rugged, well-rounded Muff-type fuzz distortion. Utilizing silicon transistors in a customized architecture to get the best of both worlds, the Eureka! is a team player, working well with all kinds of effects, guitars, and amplifiers, while still managing to maintain its own personality.

The built-in 3-position toggle switch offers more low-end, a particularly useful feature for switching between single-coil and humbucker guitars and for boosting things in solos.