Fairfield Circuitry ~900 About Nine Hundred Fuzz vs Warm Audio Dirty Boy Jr. Fuzz
The Fairfield Circuitry ~900 About Nine Hundred Fuzz and the Warm Audio Dirty Boy Jr. Fuzz are both pedals sharing sustaining, saturated, dynamic. The Fairfield Circuitry ~900 About Nine Hundred Fuzz leans warm. Current prices: $232.07 vs $169.
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Blended from circuit-archetype lineage, dynamic feel, tone-signal overlap and tone-vector distance — the tone vector itself is derived from editorial description text, not a measured acoustic signal, so this reflects how similarly the catalog copy describes the two, not a lab measurement. Shown only within a gear class, and only where there's enough evidence to be meaningful.45% — somewhat different
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Derived from overlapping tonal signals across both listings.- sustaining
- saturated
- dynamic
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$232.07via Reverb
$169via Reverb
The Fairfield Circuitry 900 About Nine Hundred is a JFET-based fuzz pedal from the Canadian boutique builder Fairfield, tracing its lineage to the discontinued Four Eyes Fuzz. Two cascading JFET gain stages provide a very wide gain range from gritty, warm saturation to full fuzz with controlled harmonic density. Controls include Input, Fuzz, Bias, and Volume, with the Bias control introducing gated and sputtering textures by adjusting the second stage operating point. It suits blues, psych, indie, and experimental rock contexts.
The Warm Audio Dirty Boy Jr. Fuzz is built around the original Dirty Boy Afro Fuzz circuit, part of a three-pedal Jr. series created in collaboration with boutique builder Dirty Boy Pedals to bring their circuits to a more affordable, pedalboard-friendly format. It delivers rich sustain and harmonic saturation with dynamic cleanup via the guitar's volume knob, and includes the series' signature six-position frequency selector for shaping the fuzz's tonal character. As part of the wider Dirty Boy Jr. series alongside a Booster and an Overdrive model, it shares the boutique-derived circuit design philosophy of the original, full-size Dirty Boy pedals. Released in 2026 as a newly launched collaboration, it targets players wanting boutique-level fuzz character without the cost or wait of the original hand-built Dirty Boy units.
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Genres this gear is documented as being used in.- Blues
- Indie
- Alternative Rock
- Rock
- Experimental
- Classic Rock
- Blues Rock
- warm