The Fuzzlord MF-4 Fuzz is an analog fuzz pedal from Fuzzlord Effects, listed at $215.00 USD as of 22 October 20261. The maker describes it as "a brutal reimagining of the legendary Green Russian and NYC Big Muff circuits", and says it "delivers crushing sustain and raw aggression without sacrificing clarity. It's voiced to retain tight low end and punch through the mix"1. RockBoard's PedalPedia categorises it as a "FUZZ EQUALIZER", reflecting the added mid control that sets it apart from standard Muff-style pedals2.
Controls
The MF-4 has four knobs, and the MID control is the one that separates it from the pedals it is based on1.
| Control | What it does |
|---|---|
| LEVEL | Commands the overall output volume |
| GAIN | From subtle crunch to full-blown fuzz |
| TONE | Explore bass-heavy tones or dial in treble brilliance |
| MID | Sculpt your midrange, adjusting the amount of mid scoop and frequencies covered |
All control descriptions are from Fuzzlord Effects' product page1.
Green Russian and NYC Big Muff roots
Fuzzlord positions the MF-4 as a modern take on two of the best-known Big Muff variants: the New York City original and the Green Russian, the Soviet-built version prized for its smoother character. The maker calls it "a brutal reimagining of the legendary Green Russian and NYC Big Muff circuits"1, and RockBoard's PedalPedia describes the pedal as "paying homage to the iconic green Russian fuzz pedal"2.
The Green Russian's reputation among players is for a big, smooth fuzz. On the Guitar FX Layouts technical blog, layout author Zach wrote: "i'm a huge fan of the original green russian muff. it's massive and the fuzz is smooth and creamy"3. That smooth, full character is the starting point the MF-4 builds on.
The MID control: what makes it different
On a traditional Muff-style pedal, the midrange scoop is fixed in the circuit. The MF-4's expanded MID control lets the player adjust both the amount of mid scoop and the frequencies it covers. Fuzzlord says "the MF-4 introduces an expanded MID control that lets you command your tone with surgical precision"1. RockBoard's PedalPedia puts it the same way: "This pedal stands out from standard Muff stlye pedals with its expanded mid control"2. For players who find a standard Big Muff disappears in a band mix, the control is aimed at putting midrange back in play, and RockBoard's PedalPedia notes the pedal is designed for guitarists and bassists2.
Power, switching and size
Fuzzlord specifies a 9v center negative 2.1mm isolated power supply, drawing 45mA1. Check your pedalboard supply's isolated output ratings before adding it to a daisy chain.
- Power: 9V DC, center negative, 2.1mm connector, isolated supply1
- Current draw: 45mA12
- Switching: True bypass soft switching, which the maker describes as seamless transitions1
- Dimensions: 120 x 94 x 42.5 mm, described by the maker as compact and pedalboard-friendly1
Buying direct from Fuzzlord
Fuzzlord Effects' own store terms apply to the MF-41:
- Returns accepted within 3 days of delivery, buyer pays return shipping
- International orders may be subject to customs fees, and all additional fees are the buyer's responsibility
Videos
Fuzzlord Effects
Beholden To The Riff | Heavy Bass & Guitar
Fuzzed Drones
Questions
What is the Fuzzlord MF-4 based on?
Fuzzlord Effects describes the MF-4 as a reimagining of the Green Russian and NYC Big Muff fuzz circuits. RockBoard's PedalPedia entry likewise describes it as paying homage to the iconic green Russian fuzz pedal, the Soviet-era Big Muff variant known for a smooth, creamy fuzz character.
How is the MID control different from a standard Big Muff?
On a traditional Muff-style pedal the mid scoop is fixed. The MF-4 adds an expanded MID control that lets the player adjust both the amount of mid scoop and the frequencies it covers, so the midrange can be shaped rather than simply scooped out.
Is the Fuzzlord MF-4 true bypass?
Yes. Fuzzlord Effects specifies true bypass soft switching, which the maker describes as giving seamless transitions when the pedal is switched in and out.
How much current does the Fuzzlord MF-4 draw?
The MF-4 draws 45mA, according to both Fuzzlord Effects and RockBoard's PedalPedia. It runs on a 9V center negative 2.1mm isolated power supply.
What colors does the MF-4 come in?
Fuzzlord Effects lists the MF-4 in Black and Red.
What is the returns policy on the Fuzzlord MF-4?
Fuzzlord Effects accepts returns within 3 days of delivery, with the buyer paying return shipping. International orders may be subject to customs fees, and all additional fees are the buyer's responsibility.
Sources (3)
- MF-4 Fuzz, Fuzzlord Effects, 2026-06-01
- MF-4 by Fuzzlord Effects, RockBoard PedalPedia, 2026
- Guitar FX Layouts: Mojo Hand Colossus Fuzz, Guitar FX Layouts (tagboardeffects.blogspot.com), 2015-11-18
