The SuperCool Pedals '77 Fuzz Blender is a fuzz pedal built on an OpAmp/IC Muff-style circuit, the op-amp branch of the Big Muff family rather than the more common transistor-based designs. Pedal of the Day described it as "a calculated modern take that delivers a rich and highly modifiable tone", and counted it as "pretty much 2 fuzz sounds in one pedal"1.
Controls and the two fuzz voices
The pedal's controls give it its range. Guitar Pedal X listed the feature set as "an OpAmp/IC Muff-style fuzz with Clean Blend, Mid Hump/Scoop, Symmetrical/Asymmetrical clipping, Tar (Sustain), Smoke (E"2, and Pedal of the Day added that the pedal has "a boosted gain and sustain/feedback chain for a compressor-like crush"1.
- Cigarette push button: selects UP Symmetrical / DOWN Asymmetrical clipping2
- Clean Blend: mixes clean signal with the fuzz2
- Mid Hump/Scoop: shapes the midrange between a humped and a scooped voicing2
- Tar: sustain control2
The clipping button and the midrange control work together as the pedal's two voices. Guitar Pedal X's reviewer, Stefan Karlsson, found that "Its Mid-Hump/Asymmetrical setting produces open, richly complex harmonic textures and long sustain; Scoop/Symmetrical is" more stock Muff-like2.
How it sits against other Muffs
Karlsson put the pedal's distinctiveness in context against a large reference collection:
"I own around 110 diverse Big Muffs of every core type, including around a dozen OpAmp / IC types - and this ’77 Fuzz Blender is pretty unique up against all of those!"2
Guitar Pedal X, 2025-02-192
In other words, a reviewer with deep familiarity with the op-amp Muff variants still found this one distinct, largely because of the blend, midrange and clipping options that a stock Muff does not offer2.
The Jr version
There is also a Jr three-knob version of the pedal. Guitar Pedal X noted that it "removes all the more interesting options for me - the" Clean Blend, Mid Hump and Asymmetrical clipping options2. Players who want the full control set would look at the deluxe version rather than the Jr.
Pricing
Guitar Pedal X listed the '77 Fuzz Blender at $199 from the Super Cool Webstore, and £195 in the UK via Modesto on Reverb, as of 2025-02-192.
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Questions
What is the Cigarette button on the '77 Fuzz Blender?
The Cigarette button is a push button on the pedal that selects the clipping arrangement. Up gives symmetrical clipping, down gives asymmetrical clipping. Guitar Pedal X found the asymmetrical, mid-humped setting produced open, richly complex harmonic textures and long sustain, while the symmetrical, scooped setting sounded more like a stock Muff.
Does the '77 Fuzz Blender use op-amps or transistors?
It uses operational amplifiers rather than a transistor-based fuzz design. Pedal of the Day notes the pedal features two coveted operational amplifiers, a JC4558 and the classic LM741 chip, in an OpAmp/IC Muff-style circuit.
What is the difference between symmetrical and asymmetrical clipping?
On this pedal, the two clipping options shape the fuzz in distinct ways. According to Guitar Pedal X, the Mid-Hump/Asymmetrical setting produces open, richly complex harmonic textures and long sustain, while the Scoop/Symmetrical setting is more stock Muff-like in character.
What does the Jr version of the '77 Fuzz Blender leave out?
There is also a Jr three-knob version of the pedal. Guitar Pedal X notes that it removes the Clean Blend, the Mid Hump control and the Asymmetrical clipping option, which the reviewer described as the more interesting options.
Who designed the Supercool Pedals '77 Fuzz Blender?
The pedal was designed by Jamie Muir of SuperCool Pedals, according to Guitar Pedal X's review of the pedal.
Sources (2)
- Supercool Pedals '77 Fuzz Blender, Pedal of the Day, 2023-02-18
- Guitar Pedal X, Guitar Pedal X, 2025-02-19



