October Audio F Division FD.2
Glitchy Fuzz Meets Sub-Octave Synth Destruction
The October Audio F Division FD.2 takes fuzz and sub-octave synthesis into uncharted, beautifully broken territory. A reimagined and expanded version of the original F Division, the FD.2 adds pulse width modulation (PWM) control to a screaming digital fuzz circuit and delivers a monophonic synth experience that’s as wild as it is versatile.
This isn’t your typical octave fuzz—it’s a frequency mangler, a glitch machine, and a sub-harmonic beast. Whether you’re building thick, square-wave bass lines or exploring sputtering, octave-up chaos, the FD.2 is designed for sonic explorers who want more than just distortion.
Sub-Octave Synth Power with Fuzz on Steroids
At its core, the FD.2 uses a CMOS counter/divider to split your input signal into one or two sub-octaves, each half the frequency of the last. These square-wave sub signals can be activated independently via toggles and then blended in using the Sub Mix knob.
The result?
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One octave down sounds like a tight bass player shadowing your every move.
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Two octaves down turns your guitar into a gritty analog synth with deep, glitchy punch.
Combine them for a massive wall of low-end fuzz that tracks surprisingly well across the fretboard—with increasingly unstable, wonderful chaos below the 5th fret.
PWM-Controlled Fuzz: From Dirty to Deranged
The fuzz circuit in the FD.2 uses XOR logic gates for a frequency-doubling fuzz effect, giving you a sharp, edgy texture that veers from filtered bite to shrieking octave-up howls. With the PWM mini-knob, you can shape the fuzz from gritty and cutting to absolutely unhinged:
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Sweep left for more stable, filtered tones
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Sweep right for extreme glitch, choking signal sputters, and searing upper octave static
It’s filthy, unpredictable, and unapologetically over-the-top.
Dial In the Chaos – Your Way
With intuitive controls and endless combinations, the FD.2 is built for players who love sculpting sound:
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Sub Toggle 1 / Sub Toggle 2 – Activate one or both sub-octaves
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Sub Mix – Blend in the low-end synth layers
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Fuzz Mix – Adjust the intensity and blend of the digital fuzz
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PWM (mini-knob) – Shape the character of the fuzz tone
Pro tip: Kill the subs, max out PWM, and prepare for a “needle-to-the-ear” noise assault.
Features at a Glance
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Monophonic sub-octave synthesizer + digital fuzz
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CMOS-based frequency division (1 and 2 octaves down)
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Exclusive-OR fuzz circuit with PWM control
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Separate toggles for each sub-octave
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Independent mix knobs for Sub and Fuzz signals
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True bypass
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Hand-built in the USA
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9V DC power (center-negative)
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Series 2: Austere design, esoteric nomenclature, glitch-maxed visuals
Perfect For
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Players wanting synth-style fuzz textures
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Glitch, noise, and experimental musicians
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Bassists and guitarists chasing square-wave chaos
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Anyone who thinks traditional fuzz is too polite
October Audio’s F Division FD.2 isn’t just a pedal—it’s a tool for sonic experimentation. Whether you’re stacking frequencies, sculpting synth-style walls of fuzz, or diving headfirst into glitch madness, the FD.2 brings the extremes into focus. Plug in, turn knobs, and embrace the destruction.
Buy NOW
BOOM!
