The Gervana Wuyin Multi-Muff Fuzz is a fuzz/distortion pedal in what one reviewer described as "a highly attractive, seemingly enamel accented enclosure in striking jade green colourway"1. It sits alongside Gervana's earlier distortions, the Ji Wei and the hand-wired Ji Si, and its pitch is in the name: rather than committing to one Muff-style voicing, it aims to put several in one box1.
Controls and sound combinations
The pedal's two controls each offer three settings, and Guitar Pedal X's Stefan Karlsson called them "2 potent controls" that together make for one of the more expansive Muff-style pedals around1.
| Control | Positions | What it selects |
|---|---|---|
| VOICE | 3 | Green Muff, Red/Black Muff, or Triangle Muff voicing1 |
| MODEL | 3 | Three further options, combined with VOICE for nine total sounds1 |
The VOICE switch is the one that maps directly to familiar Muff territory: it selects a Green Muff, a Red/Black Muff, or a Triangle Muff character, the circuit families most Muff players already know by name1. For a player who has never owned a fuzz before, that means one pedal can demonstrate several of the classic Muff flavors rather than a single fixed take on the circuit.
Enclosure and availability
Guitar Pedal X described the enclosure as "a highly attractive, seemingly enamel accented enclosure in striking jade green colourway"1.
As of February 2026, the pedal was available through two channels1:
- Two listings on AliExpress, at an all-in price of £145 including delivery
- One listing on Reverb.com, whose title states that the price includes the import duty for US buyers
The Reverb.com listing is the one aimed at US buyers: its title states that the price includes import duty for US buyers, which matters when ordering a pedal shipped from China1.
What reviewers said
Stefan Karlsson's verdict on the sound, with reference to the Mike Hermans demo video: "The Mike Hermans demo is pretty decent - and this sounds like a particularly sweet Big Muff variant."1
Videos
Mike Hermans
Questions
Which Big Muff variants does the Wuyin Multi-Muff cover?
The VOICE switch selects between three Muff-style voicings: Green Muff, Red/Black Muff, or Triangle Muff. Combined with the three positions of the MODEL switch, that gives nine combinations in total, so the pedal covers a range of the classic Muff circuit families in one enclosure.
Does the Reverb.com listing price include import duty for US buyers?
Yes. According to Guitar Pedal X, the Reverb.com listing for the Wuyin Multi-Muff Fuzz is titled as including the import duty for US buyers, so the price shown on that listing is meant to cover what a US buyer pays on arrival.
Where can the Gervana Wuyin Multi-Muff Fuzz be bought?
As of February 2026, Guitar Pedal X reports two listings on AliExpress, with an all-in price of £145 including delivery, and one listing on Reverb.com that includes import duty for US buyers.
How many sound combinations does the Wuyin Multi-Muff offer?
Nine. The VOICE and MODEL controls each give three options, and 3 x 3 in combination yields nine distinct Muff-style fuzz and distortion sounds.
Who makes the Wuyin Multi-Muff Fuzz?
The Wuyin Multi-Muff Fuzz is made by Gervana, a Chinese pedal brand that has also released the Ji Wei high-gain distortion and the hand-wired Ji Si distortion with a boost channel.
Sources (1)
- Guitar Pedal X, Guitar Pedal X, 2026-02-16
