The M2 Labs Fuzzocalypse Analog Chaos Injector is a handcrafted boutique fuzz pedal built around hand-matched NOS silicon transistors, in the lineage of the nastiest fuzz boxes of the late '60s1. Pedal of the Day describes it as "an analog fuzz pedal built without limitations, without compromise, and without apologies"1. It follows in the footsteps of The Bomber Overdrive, the maker's earlier release1.
The circuit and how it works
At its heart sits a true two-transistor silicon fuzz core. After the fuzz stage, the signal hits a low-noise recovery stage and an active tone circuit running on internally boosted power rails1. The review is explicit about what is not inside: "No clipping diodes faking it, no digital anything"1. The fuzz character comes from the transistors themselves rather than from diode clipping or digital modeling, which is the approach of the classic late-'60s designs the pedal draws on1.
Controls and Chaos Mode
The Fuzz control works the transistor pair directly, the way the old circuits did, so it cleans up off your guitar's volume knob1. That interaction between the control and the transistors is what gives two-transistor fuzzes their touch-sensitive response, and it carries over here.
Chaos Mode is engaged by a small black switch above the gauge. The review describes the two positions1:
- Switched off: the pedal's core voice, vintage fuzz the way it was meant to sound
- Switched on: the guardrails come off, opening the pedal to noise and sonic destruction1
"Switched off, you're running the pedal's core voice, vintage fuzz the way it was meant to sound. Flip it on and you enter..."
There is also an analog panel meter on the face of the pedal, described by the reviewer as a gorgeous VU meter1.
What reviewers said
Pedal of the Day's reviewer called it "a fuzz like none I've come across yet," citing simple controls, a huge range of sounds and the VU meter as standouts1. The pedal is described as designed for players who want access to everything from vintage fuzz tones to complete signal obliteration, from controlled sustain to pure textural chaos1.
Videos
Pedal of the Day
Tone Central Station
Questions
What does Chaos Mode do on the Fuzzocalypse?
Chaos Mode is engaged by a small black switch above the gauge. Switched off, the pedal runs its core voice, vintage fuzz the way it was meant to sound. Flip it on and the guardrails come off, opening the pedal up to noise and sonic destruction. The reviewer describes the pedal's overall range as everything from vintage fuzz tones to complete signal obliteration, from controlled sustain to pure textural chaos.
Does the Fuzzocalypse clean up with the guitar's volume knob?
Yes. According to Pedal of the Day's review, the Fuzz control works the transistor pair directly, the way the old circuits did, so it cleans up off your guitar's volume knob. That is a trait players usually associate with classic two-transistor fuzz designs, and it carries over here because the control interacts with the transistors themselves.
Does the Fuzzocalypse use clipping diodes?
No. The review states plainly that there are no clipping diodes faking it and no digital anything. The distortion comes from a true two-transistor silicon fuzz core built around hand-matched NOS silicon transistors, with the signal then passing through a low-noise recovery stage and an active tone circuit.
What is the Fuzzocalypse's relationship to The Bomber Overdrive?
Pedal of the Day describes the Fuzzocalypse as following in the footsteps of The Bomber Overdrive, positioning it as the next release from M2 Labs after that pedal. The Fuzzocalypse itself is a fuzz rather than an overdrive, built around a two-transistor silicon core.
Is the Fuzzocalypse analog?
Yes. The review calls it an analog fuzz pedal built without limitations, without compromise, and without apologies. There is no digital circuitry in it: the core is a pair of hand-matched NOS silicon transistors, followed by a low-noise recovery stage and an active tone circuit running on internally boosted power rails.
Sources (1)
- M2 Labs Fuzzocalypse Analog Chaos Injector, Pedal of the Day, 2026-07-03