The Free Fall Diver Huge Fuzz is a fuzz pedal from the Japanese maker Free Fall Diver that covers several Big Muff varieties in a single pedal. Guitar Pedal X's Stefan Karlsson lists it as a "Multi-Muff" and prices it at $186 USD as of June 20241. An earlier Guitar Pedal X round-up from April 2022 listed the same pedal at ¥23,000, which that source paired with a $186 USD figure2.
Thick but punchy: the sound and the controls
Karlsson's review describes the Huge Fuzz as sounding "absolutely immense - really beautifully richly textured, kind of thick - but punchy too. Very well balanced"1. In other words, the maker's Multi-Muff approach aims at a full Big Muff-style wall of fuzz that keeps note definition rather than smearing it.
The controls follow the classic three-knob Muff layout. Karlsson notes the knobs are "variously labelled: Volume / Level | Tone | Sustain / Drive", the same set of functions found on the Big Muff pedals the Huge Fuzz draws from1. That makes the pedal familiar to anyone who has used a Muff-style fuzz before: gain on one knob, tone shaping on another, and output level on the third.
Huge Fuzz and Huge Mini Fuzz
Free Fall Diver makes two versions of the design:
| Huge Fuzz | Huge Mini Fuzz | |
|---|---|---|
| Format | full-size pedal | compact mini pedal |
| Description | Multi-Muff covering several Big Muff varieties1 | "Multi Mini Muff"3 |
Both carry the same Multi-Muff idea in different footprints. Karlsson has been consistent in his regard for the design: in a June 2024 comparison with the Tone City Matcha Cream Fuzz, another Big Muff take, he wrote, "I really like the Matcha Cream, but not quite as much as I love the Free Fall Diver Huge!"4. In a May 2025 piece on acquiring the Free Fall Diver Twelve, an extended Rat-style distortion, he called the Huge "one of my all time favourites"5.
Where it sits among Muff-style fuzzes
The Huge Fuzz belongs to a crowded field of pedals built on the Big Muff circuit. Other Muff-based designs covered on this site include the Way Huge Smalls Doom Hammer Fuzz, which Guitar Pedal X reports is based on Jeorge Tripps' 1998 mod of a presumably 1978 Opamp Big Muff6. What sets the Huge Fuzz apart within that field, per Karlsson, is its Multi-Muff coverage of several Big Muff varieties at once rather than a single fixed version of the circuit1.
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Questions
Is the Free Fall Diver Huge Fuzz based on the Big Muff?
Yes. Guitar Pedal X lists the Huge Fuzz as a Muff-based design, and describes it as a Multi-Muff, meaning it covers several Big Muff varieties rather than reproducing a single version of the circuit. It keeps the classic three-knob Muff control layout of Volume or Level, Tone, and Sustain or Drive.
How much does the Free Fall Diver Huge Fuzz cost?
Guitar Pedal X's June 2024 review lists the Huge Fuzz at $186 USD. An earlier Guitar Pedal X selection from April 2022 listed it at ¥23,000, which the same source paired with a $186 USD figure.
What is the difference between the Huge Fuzz and the Huge Mini Fuzz?
Both are Free Fall Diver Muff-style fuzzes. The Huge Fuzz is the full-size pedal, described by Guitar Pedal X as a Multi-Muff covering several Big Muff varieties. The Huge Mini Fuzz is the compact version, described on RockBoard's PedalPedia as a Multi Mini Muff.
How many knobs does the Free Fall Diver Huge Fuzz have?
Three. Guitar Pedal X describes the Huge Fuzz as following the classic three-knob Muff control topology, with the knobs variously labelled Volume or Level, Tone, and Sustain or Drive.
Sources (6)
- Guitar Pedal X, Guitar Pedal X, 2024-06-21
- Guitar Pedal X, Guitar Pedal X, 2022-04-26
- Huge Mini Fuzz by Free Fall Diver, RockBoard (PedalPedia), 2026
- Guitar Pedal X, Guitar Pedal X, 2024-06-10
- Guitar Pedal X, Guitar Pedal X, 2025-05-28
- Guitar Pedal X, Guitar Pedal X, 2025-09-25
