Third Stone

Berkos FX spent a year developing the Third Stone, testing every transistor and component available to capture the organic fuzz tones of the 1960s. The result is a silicon fuzz with exceptional feel and natural midrange character.

Two modes expand the tonal range: EXP delivers warmer, more organic tones with less gain, while Axis mode brings more aggression and higher gain. The Earth (tone) control adjusts bass attenuation—counterclockwise tightens the low end for more midrange focus.

Using temperature-stable silicon transistors, high-end capacitors, and carbon composition resistors, the Third Stone delivers vintage fuzz character with modern reliability. True bypass switching keeps your signal clean when disengaged.