The Mythos Big Puft Fuzz Device is a fuzz pedal from Mythos Pedals, offered in olive and yellow versions. Mythos describes it as inspired by the iconic BMP circuit, the Electro-Harmonix Big Muff lineage, but says the Puft is "sort of an amalgam of our favorite sounds that style pedal has offered" rather than a copy of any single version1. On That Pedal Show, Mick took the name as a nod to the Electro-Harmonix Big Muff2.
What it does
The Big Puft sits in the Big Muff tradition: a sustain-heavy fuzz voice that players know from decades of muff-style pedals. What Mythos says sets it apart is that it gathers the sounds the maker liked from that whole family of circuits into one pedal, instead of recreating one era of the original1.
On the board
Mythos lists quality top mount panel jacks, so input and output connections sit on the top edge of the enclosure rather than the sides, which can make a pedalboard easier to lay out13.
What reviewers said
That Pedal Show demoed the Big Puft in an episode that also covered the Cornerstone Nucleo Reverb, the TWA Source Code, the Dinosaural Hypoid Drive and the Electro-Harmonix Pico Swello2. The hosts found a large amount of output volume compared to some muffs, with Mick noting "bags of variance in all the controls. Absolutely tons of output"2. On the voice of the pedal, Mick asked, "Whatever you've done to the mid-range, Zach", with the hosts finding the mid-range appealing where typical muffs can come across as too bassy, middly or sustainy2.
The Stay Puft sounds begin at 17:28 in the episode, if a player wants to hear the pedal on its own4.
Where it sits in the Mythos range
Mythos builds several fuzzes alongside the Big Puft, including the Positron Collider, the AU-79 Fuzz, the 1347 Silicon Fuzz and the Argo Octave Fuzz. The Puft is the one that takes on the Big Muff style directly1.
Videos
Mythos Pedals
James Stanley
Tom Draper
Sources (4)
- Big Puft Fuzz Device, Mythos Pedals
- So Much Tone! Mythos Big Puft, Cornerstone Nucleo, TWA Source Code, EHX Swello & Dinosaural Hypoid, That Pedal Show (YouTube), 2025-10-10
- Big Puft Fuzz Device, Mythos Pedals
- So Much Tone! Mythos Big Puft, Cornerstone Nucleo, TWA Source Code, EHX Swello & Dinosaural Hypoid, That Pedal Show, 2025-10-10








