A state-variable filter with wide range and application. Versatile. Combining tilt and notch/boost equalization around a 2nd-order (-12dB/octave) state-variable core.

Very much a one-band parametric equalizer with gritty extras:

Shelving filter, from low-pass to high-pass
CV inputs for resonance (Q) and frequency (F)
V/octave scaling synthesizer interface
Fully variable Q goes well into tasty sweet self-oscillations
Soft clip zener zesty mordant
Expression pedal input controls center frequency

Fairfield Circuitry

Official Product Video

Demo by Cyberattack

Review by Pedal of the Day

Review by The Gear Page

Review by reddit /guitarpedals

Manual

Product Page

Long Life

And when things are combined, is anything lost? And when something is lost, will there ever be more?

But what is the gain?

The ~900 is a ferocious fuzz pedal featuring two cascading JFET gain stages. Tracing its lineage back to our discontinued Four Eyes Fuzz, it offers a very wide range of gain, adds delicious harmonics and, if given the opportunity, will slap the ice cream cone right out of your hand.

All Fuzzes
Are Friends
AF

Demo by collector//emitter

Demo by Emily Hopkins

Review by Perfect Circuit

~900

Der Fairfield Circuitry 20% More ist ein experimenteller Slew-Limiting-Distortion-Effekt, der eine aus modularen Synthesizern bekannte Schaltung zur kreativen Klangformung von Gitarre und anderen Audiosignalen nutzt. Anstelle normaler Verzerrungsabschnitte begrenzt ein Slew-Limiter die Geschwindigkeit von Spannungsänderungen, was zu einem einzigartigen Mix aus Tiefpass-Filterung, resonanten Dreiecksoszillationen, Pseudo-Wavefolding-Effekten und JFET-Clipping führt. Zusätzliche Regler für Blend, Feed, Low-Pass Gate, Oktav-Up/Down-Schalter und ein Envelope-Follower ermöglichen eine breite Klangpalette von ungewöhnlicher Verzerrung bis hin zu synth-artigen Fuzz- und Filtereffekten.

The Fairfield Circuitry 20% More is an experimental slew-limiting distortion pedal that uses a circuit normally found in modular synths to creatively shape guitar and other audio signals. Instead of normal distortion clipping stages, it applies a slew limiter to control how fast voltage changes, giving a unique combination of low-pass filtering, resonant triangle wave oscillations, pseudo-wavefolding, and JFET clipping. Additional controls include blend, feed, low-pass gate, octave up/down switches, and an envelope follower, creating a wide palette from quirky distortion to synth-like fuzz and filtering effects.

Review by Guitar Pedal X

20% More

Review by guitar pedal X

Review by perfect circuit

Demo by Sarah Belle Reid

Roger That

As you wait for the next tray of free food on platters held by white gloves, notice the contrasts that emerge from the hunger and tensions within the space. Will we remember what it takes to keep us here?

Indeed, causality breaks down when feedback loops are involved. The effect nestled within the cause, without cause, and so on. There is no beginning or end, at least objectively. And so, who eats the last hors d'œuvre, when time is space and silence is noise

The Hors d'Oeuvre? Active Feedback Loop then serves different opportunities to create and listen to: bipolar feedback of any combination of sound processing devices, and signal difference of input and return signals.

It is intentionally an introduction.