Keeley Moon Op Amp Fuzz
Overview
The Keeley Moon Op Amp Fuzz is a supermassive fuzz pedal built to deliver crushing low end, soaring sustain, and harmonically rich chaos. Designed for players who want their tone to feel as heavy as gravity itself, the Moon Op Amp Fuzz pushes both guitar and bass frequencies into deep, punishing territory while still retaining clarity and musicality.
This is not a polite fuzz. It’s a galaxy-spinning, feedback-inducing op amp monster that thrives in heavy riffs, massive walls of sound, and infinite, dreamy sustain.
Massive Op Amp Fuzz Tone
At the heart of the Moon Op Amp Fuzz is a quad op amp circuit that delivers four stages of gain and fuzz. Drawing inspiration from Keeley’s Dark Side pedal, this design flips the concept entirely—moving away from vintage lead fuzz and straight into thick, modern, low-frequency devastation.
The result is an op amp fuzz that extends your instrument’s frequencies as low as possible while keeping upper harmonics rich and alive. Notes bloom, rise, and peak into expressive feedback with ease.
Expanded Filter Control & EQ Modes
The Moon Op Amp Fuzz offers an expanded filter control that provides a wide range of usable tones, from tight and focused to wide-open and massive. A dedicated filter switch lets you choose between three distinct EQ phases:
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Scooped Mids (Classic): Perfect for massive, aggressive fuzz tones with a familiar heavy character
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Flat EQ: Balanced and versatile for cutting through mixes
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Full Range: Maximum depth, clarity, and low-end extension
These options make the Moon Op Amp Fuzz adaptable across genres, from doom and sludge to shoegaze and experimental rock.
Stack, Feed, and Explore
Designed to stack beautifully, the Moon Op Amp Fuzz comes alive when fed by your favorite overdrive or distortion pedals. Pushing it with additional gain unlocks complex textures, deeper saturation, and otherworldly sustain—ideal for players who love experimenting with layered drive sounds.
Why Choose the Keeley Moon Op Amp Fuzz?
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Quad op amp design with four stages of gain
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Massive low-end response for guitar and bass
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Expanded filter control with three EQ modes
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Rich harmonics, infinite sustain, and expressive feedback
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One of Keeley’s heaviest and most atmospheric fuzz pedals
The Keeley Moon Op Amp Fuzz is Keeley’s most lunar creation yet—an op amp fuzz pedal built for players who want their tone to feel enormous, immersive, and unapologetically heavy.
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BOOM!
