The Harby Pedals BMF Distortion Sustainer Fuzz is a distortion, sustainer and fuzz pedal built as a modern recreation of the green Sovtek Big Muff, specifically the 7B and 7C models. Pedal of the Day's review describes it as delivering "vintage sounds again and again, pushing the envelope and pushing your amp to the brink" overall1. It sits in the fuzz and distortion territory players associate with the Big Muff family: heavy sustain and a thick, saturated drive voice.
Controls and hardware
The control section consists of Volume, Distortion, and Tone knobs, the familiar three-knob Big Muff arrangement1. Harby Pedals built the pedal with upgraded components, which Pedal of the Day lists as:
- Solid anodized aluminum knobs
- Neutrik input/output jacks
- Japanese capacitors and resistors
The pedal uses true bypass switching, which the review describes as keeping "a pristine original tone when the effect is off"1.
Charity donation
Pedal of the Day notes that $50 from the sale of each pedal is donated to Ukrainian humanitarian aid, or $35 if the pedal is purchased on Amazon1.
Related Harby Pedals fuzzes
Harby Pedals has built several pedals around the Sovtek Big Muff lineage. The Pi-7C* Modified Distortion Sustainer Fuzz is a reimagined Russian Sovtek Big Muff Pi that adds a Mids control alongside true bypass switching, giving players a mid-focused alternative to the BMF's classic three-knob layout1. The maker's range also extends beyond fuzz: the Noble Tone is an overdrive, boost and distortion pedal, covered in the overdrive family.
Videos
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Questions
What circuit is the BMF Distortion Sustainer Fuzz based on?
Pedal of the Day describes it as a modern recreation of the green Sovtek Big Muff, specifically the 7B and 7C models. Those Soviet-era Big Muffs are known for a thick, sustaining distortion and fuzz character, and the BMF carries that circuit into a modern build with upgraded hardware such as Neutrik jacks and Japanese capacitors and resistors.
How is the BMF controlled?
The control section consists of three knobs: Volume, Distortion, and Tone. That is the classic Big Muff layout, where Distortion sets the amount of gain and sustain, Tone shapes the balance between bass and treble, and Volume sets the output level. The pedal also uses true bypass switching, so your original tone passes through untouched when the effect is off.
Sources (1)
- Harby Pedals BMF Distortion Sustainer Fuzz, Pedal of the Day, 2022-11-02
