Fairfield Circuitry 900 About Nine Hundred Fuzz Pedal

Retailing in the region of £219.00

On the menu for January 2026 are the Fairfield Circuitry Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the Fairfield Circuitry Guitar Pedals today.


Description

On the menu for January 2026 are the Fairfield Circuitry Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the Fairfield Circuitry Guitar Pedals today.

Here's what Fairfield Circuitry have to say:

The ~900 is a ferocious fuzz pedal featuring two cascading JFET gain stages. The ~900 is a spiritual successor to our discontinued Four Eyes Fuzz, having a similar fuzz circuit. This pedal has a very wide range of gain, brought to you by four interactive controls: INPUT, FUZZ, BIAS, VOLUME.

The INPUT section is a 'mu-amp' design. The INPUT knob controls the level going into this first gain stage – you can go from clean with lots of headroom, to
completely slammed and distorted – and everything in between. The FUZZ knob controls the level going into the second JFET gain stage. This section is very dependent on the level of the INPUT.

The BIAS knob adjusts the bias of the second gain stage. This gives control over the saturation symmetry, and can also allow gating when turned up high enough. The BIAS knob is especially interactive with the FUZZ knob. The VOLUME controls the master volume output. This pedal has a lot of gain to offer and can get quite loud.

The ~900 is an overall very versatile fuzz pedal. It stacks well with other pedals and is friendly to all sorts of instruments and signal levels. The INPUT especially will dictate how the pedal responds. At lower INPUT levels, the FUZZ will have a wide range of tones and interact heavily with the BIAS knob. When the INPUT is raised high, the FUZZ and BIAS will be a bit less responsive – but at that point you will be experiencing a thick wall of distortion/fuzz

Specifications:

  • INPUT – preamp input level
  • FUZZ – interstage level
  • BIAS – second stage bias and gain
  • VOLUME – output level

Additional information

Weight 0.5 kg

Brand

Fairfield Circuitry

Fairfield Circuitry is a boutique pedal company based in Hull, Quebec, Canada, known for its unique and innovative effects pedals designed for guitarists and bassists. Founded by Guillaume Fairfield, the company has gained recognition for its commitment to craftsmanship, creativity, and sonic excellence.

Fairfield Circuitry pedals are revered for their distinctive designs, offering musicians a wide range of effects to explore and incorporate into their music. Each pedal is meticulously handcrafted using high-quality components and features intuitive controls, allowing musicians to easily dial in their desired tones.

One of Fairfield Circuitry’s most acclaimed pedals is the Shallow Water, a dynamic tremolo pedal that simulates the unpredictable behaviour of vintage magnetic tape machines and tube amplifiers. The Shallow Water offers a unique and organic tremolo effect with a touch of modulation, creating lush, swirling textures reminiscent of ocean waves.

Category

Guitar Pedals

Tags

Distortion

Distortion pedals take your clean guitar signal and transform it into something bigger, bolder, and full of attitude. By clipping the waveform, they add sustain, bite, and aggression, creating that thick, compressed tone that’s powered rock music for decades. From the growling crunch of classic hard rock to the tight, saturated roar of modern metal, distortion is all about energy and presence. It gives every note weight and authority, pushing your amp to its limits and beyond.

There are countless flavours of distortion, each with its own texture and edge. Some sound smooth and creamy, others raw and gnarly like tearing fabric. It’s the sonic equivalent of turning up the heat until the sound cooks — rich, sizzling, and perfectly seasoned to taste. Whether used for rhythm muscle or soaring leads, a good distortion pedal doesn’t just add volume; it adds personality, grit, and that unmistakable sense of power under your fingers.

Fuzz

A fuzz pedal is one of the earliest and most aggressive forms of distortion, turning your clean guitar signal into a thick, saturated wall of sound. It works by clipping the waveform almost flat, creating a compressed, gritty tone full of harmonic overtones. The result is raw, unruly, and unmistakable — from the sputtering breakup of vintage germanium circuits to the searing sustain of modern silicon designs. Fuzz pedals react strongly to your guitar’s volume and pickup choice, making them dynamic tools for expressive players.

Whether you’re chasing the classic tones of Hendrix and the Smashing Pumpkins or exploring heavy, experimental textures, fuzz remains a favourite for its personality and unpredictability. It can sound smooth and sustaining, or wild and velcro-like, depending on how it’s set up. A good fuzz pedal cuts through the mix while adding thickness and attitude, turning any riff or lead line into something bold and unmistakably alive.

New

This is brand new, fresh in, and a UK warranty is included. New Gear always comes from trusted UK music retailers.

Preamp

A preamp pedal shapes and boosts your guitar’s signal before it reaches your amp or recording interface, giving you control over tone, gain, and headroom. It acts as the first stage of amplification, adding warmth, clarity, and character while preparing your signal for the next part of the chain. Some preamps emulate the response of classic valve circuits, while others offer clean, transparent tone shaping ideal for acoustic instruments or direct recording setups.

Used on its own, a preamp pedal can serve as the foundation of your tone, providing a consistent core sound wherever you play. When combined with other effects, it enhances dynamics and helps each pedal sound more defined and natural. Whether you’re looking to push your amp harder, bring life to a dull signal, or refine your sound for the studio, a good preamp pedal adds presence, punch, and musicality to any rig.

Volume

Volume pedals control the output level of a guitar signal using a foot-operated treadle. They allow smooth volume swells, dynamic control during playing, and easy muting between songs. Volume pedals can be placed at different points in the signal chain to either control overall loudness or adjust gain and drive behaviour when positioned before distortion or overdrive pedals.