Fairfield Circuitry ‘Roger That’ FM Demodulator Distortion & Fuzz Pedal

£299.00

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.


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Description

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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.

The Fairfield Circuitry Roger That is a unique signal degradation device that (at least in terms of guitar) lives somewhere between distortion, fuzz, and the crackling white noise static of an old transistor radio! It can be tuned for subtle artifacts, extreme textures, or anything in between, and produces compelling results with virtually any input signal.

Its Shift and Tune controls are mutually dependent and highly interactive — tune is like the dial on a radio receiver, sweeping through a wide spectrum of possible sounds (this can be controlled remotely via CV). Shift alters the accuracy of tracking for the incoming modulated signal. The extreme sensitivity and interactivity of these controls makes the Fairfield Roger That a playground for sonic deviance.

Controls

  • Tune: Like turning the dial on your receiver, the Tune parameter sweeps through a wide variety of sounds. From subtle artifacts, to extreme textures, noise and distortion. Summed with CV at T input.
  • Shift: Shifts the accuracy of tracking the incoming modulated signal. Sometimes acts as a filter. Highly dependent on Tune.
  • Drive: Controls the input level, from clean to dirty. Pushing the Drive control generates extreme non-linearities from the modulator/demodulator circuit. Affects both the wet and dry signals.
  • Wet Amount of wet signal at the output.
  • Dry: Amount of dry signal at the output.
  • R: Preset range of the Tune parameter: 1 – Normal, 2 – Extended
  • F: Apply voice filter ~(300Hz-3kHz) to wet signal: 0 – Filter Off , 1 – Filter On

Notes on Interactivity

  • The Tune, Shift, Drive and Range controls are highly interactive.
  • The higher the Drive, the more artifacts will be generated.
  • Tune is probably the widest, most non-linear, finest control ever included in Fairlfield Circuitry products. Micro adjustments here will drastically change the result of the demodulation.
  • Tune and Shift are mutually dependant, almost like they are the same control. By tweaking both, it almost seems like there is endless varieties of sounds.
  • The Range switch shifts the whole palette of possibilities.
  • Wet signal path is intentionally out of phase allowing for special interactivity between Wet, Dry and Filter.
  • If the original signal is still present on the wet side, adding dry signal will cancel it out leaving only the distortion artifacts.
  • If voice filter is activated in these same conditions, the result is a kind of mid-scoop instead of the usual bandpass.

Key Features

  • JFET preamp
  • CV on Tune
  • RFI/EMI approximator
  • FM/AM radio quality reducer
  • Volatile and unpredictable distortion
  • Noise, pop, crackle and squeal generator
  • True bypass

Specifications

  • Input Impedance: 1MΩ
  • Output Impedance: 1kΩ
  • Voltage: 9V DC 2.1mm centre-negative tip, >30 mA
  • Current Draw: 30mA at 9.6V DC
  • Dimensions: 4.7" x 3.8" x 1.9"

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.

Filter

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.