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Intro

The Fairfield Circuitry 900 Four Knob Fuzz Pedal is a ferocious dual-JFET fuzz engine, delivering lush harmonics and a broad gain range. A modern descendant of the Four Eyes Fuzz, it stacks two gain stages for aggressive grit and shimmering sustain. With four controls—INPUT, FUZZ, BIAS, and VOLUME—you can sculpt everything from tight punch to roaring leads, ideal for rock, psych, and experimental tones.

List of Features

• Dual cascading JFET gain stages deliver broad saturation and evolving harmonics.
• Wide gain range spans from tight edge to roaring fuzz with rich overtones.
• INPUT controls first-stage drive, shaping initial fuzz character and dynamic response.
• FUZZ scales second-stage gain, adding thickness and extended sustain for leads.
• BIAS tunes second-stage bias and gain, adjusting clipping symmetry and tonal balance.
• VOLUME sets the final output, preserving dynamics while pairing cleanly with any amp.

Final Thoughts

Powered by a Four Eyes-inspired lineage, the 900 rewards expressive playing styles with a distinct fuzz voice. It responds to picking dynamics and guitar volume, delivering everything from tight punch to soaring sustain. Add it to your rig and unlock bold, unique fuzz textures today.