The Wyatt Audio Kozel Fuzz is a mid-size Big Muff style fuzz pedal, a category of heavy, sustaining fuzz that traces back to the Electro-Harmonix Big Muff. Guitar Pedal X's Stefan Karlsson, reviewing it in August 2026, described it as combining Triangle, Ram's Head and Sovtek Muff elements, three well-known Big Muff versions, in one circuit. He heard it as "combining low-end heft with searing cutting delivery," and placed it highly among Muff-style pedals: "The Kozel though is even more impressive - definitely S-Tier for me in that category."1
Clipping and the other controls
The Kozel's headline features, as Guitar Pedal X lists them, are Mids Push, Voltage Starve, an onboard noise gate, Tone Defeat, and clipping options including diodes lift and red LEDs1. The full control set is unusually deep for a fuzz:
| Control | What it does |
|---|---|
| Volts (Starve) | Voltage starvation of the circuit1 |
| Level | Output level1 |
| Clamp | Gate threshold for the onboard noise gate1 |
| Mids | Hi Mids Boost / Stock Mids / Lo Mids Boost2 |
| Push | Mids cut or boost2 |
| Freq | Master tone2 |
| Tone Switch | On / Off (Tone Defeat)2 |
| Noise | Fuzz/gain2 |
| Q2 Clipping | Silicon 1N914 / No Diodes / Red LEDs1 |
| Q3 Clipping | Silicon 1N914 / No Diodes / Red LEDs1 |
The two clipping selectors are the heart of the design. The Kozel's fuzz stages, Q2 and Q3, each have their own three-way clipping choice: silicon 1N914 diodes, no diodes at all, or red LEDs. Being able to set the two stages independently is what Guitar Pedal X flagged as among the "Killer Clipping Options"1.
The Kozel is priced in pounds sterling, £219 as of the August 2026 review1. Wyatt Audio was acquired in 2026, and Guitar Pedal X reported the pedal as still current and available as of 28 August 20262.
Where it sits
Guitar Pedal X grouped the Kozel with the Toneczar OTP, TX Pedals Animalizzer and KMA Chief Disruptor as expansive mid-size Big Muff style fuzzes, all still current2. For players comparing it against a standard two- or three-knob fuzz, the Kozel's difference is the depth of control: mid shaping, a gate, voltage starve and per-stage clipping. For more on the category, see Fuzz Pedals, and Wyatt Audio's other current fuzz, the Wyatt Audio Heiress, a hybrid Fuzz Face style design.
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Wyatt Audio UK
Questions
What Big Muff versions does the Kozel Fuzz draw on?
Guitar Pedal X describes the Kozel as a mid-size Big Muff style fuzz that combines Triangle, Ram's Head and Sovtek Muff elements in one circuit. The reviewer placed it in the top tier of the Big Muff style category, calling it S-Tier for him in that field.
What does the Volts (Starve) control do?
Volts (Starve) is one of the Kozel's controls and governs voltage starvation, one of the pedal's headline features alongside Mids Push, the onboard noise gate, Tone Defeat and the selectable clipping options. Starving a fuzz circuit of voltage changes how it breaks up.
What transistors does the Kozel Fuzz use?
The Kozel Fuzz uses BC108B transistors. Guitar Pedal X's reviewer said these provide rounded sear and punchy character in the pedal's delivery.
Does the Kozel Fuzz have a noise gate?
Yes. The Kozel has an onboard noise gate, set with the Clamp control, which Guitar Pedal X lists as Gate Threshold. It sits alongside the Volts, Level, Mids, Push, Freq, Tone Switch, Noise and clipping controls.
What does Tone Defeat do?
Tone Defeat is the Tone Switch control, which turns the tone stage on or off. It is listed among the Kozel's controls as Tone Switch : On / Off (Tone Defeat), letting the player bypass the tone shaping entirely.
Sources (2)
- Guitar Pedal X, Guitar Pedal X, 2026-08-19
- Guitar Pedal X, Guitar Pedal X, 2026-08-28
