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Spiral Electric FX

Spiral Electric FX Brute Fuzz

Fuzz
Key facts
TypeFuzz pedal1
MakerSpiral Electric FX (Tom Cram)1
CollaborationMade with Shoe Pedals2
UnveiledNAMM 20191
[Clipping](/glossary/clipping)Russian 1N34A germanium diodes and modern silicon diodes on the Texture Toggle1

The Spiral Electric FX Brute Fuzz is a fuzz pedal from Spiral Electric FX, the project of ex-DigiTech circuit designer Tom Cram. Delicious Audio's Paolo De Gregorio described it as "a tough, muscular, and darker fuzz than the Black, but still bright enough to stand out," and as a pedal "designed for the needs of guitarists with bright amps who want to have a bassy options."1

It was unveiled at NAMM 2019 and shown again at NAMM 2020, where Premier Guitar's Jason Shadrick noted that Tom Cram's latest builds included "a versatile fuzz that covers both silicon and germanium tones, plus a collaboration with Shoe Pedals."21

Circuit and design

The Brute is built around a complex circuit: Silicon BC108B transistors and a Nanolog N2, mixed with Russian 1N34A germanium diodes and modern silicon diodes on the Texture Toggle. The pedal's feature list also calls for matched NOS BC108B/C transistors.1

Cram described the circuit's lineage this way:

"The Brute is a synthesis of everything I've learned while experimenting on the Custom Artefact, Blush, and Demhe fuzzes."
Paolo De Gregorio, Delicious Audio, quoting Tom Cram1

The Spiral Electric FX Brute Fuzz was unveiled at NAMM 2019, marking the pedal's public introduction.1

Controls

ControlWhat it does
Texture ToggleSwitches between Russian 1N34A germanium diodes and modern silicon diodes1
Focus ToggleA low-cut that shaves the low-end just enough to keep the Brute from getting woofy; also works well for lead work in a dense mix1
BiasA refined bias control1
DetailA darker, re-voiced detail control1

Videos

Spiral FX Red Spiral Drive Channel & Brute Fuzz Demos | NAMM 2020
Premier Guitar
Brute Fuzz Informal Demo
Spiral Electric FX
Brute Limited Edition
Spiral Electric FX

Questions

Who designed the Spiral Electric FX Brute Fuzz?

The Brute Fuzz was designed by Tom Cram, a former DigiTech circuit designer whose Spiral Electric FX project produced the Brute. It was built in collaboration with Shoe Pedals, and Cram has described it as a synthesis of everything he learned while experimenting on the Custom Artefact, Blush, and Demhe fuzzes.

What transistors does the Brute Fuzz use?

The Brute Fuzz uses a complex circuit built around Silicon BC108B transistors and a Nanolog N2, mixed with Russian 1N34A germanium diodes and modern silicon diodes. The pedal's feature list also calls for matched NOS BC108B/C transistors.

What does the Focus toggle do on the Brute Fuzz?

The Focus Toggle is a low-cut control that shaves the low-end just enough to keep the Brute from getting woofy. According to the designer, it also works well for lead work in a dense mix, which suits the pedal's intended role for players with bright amps.

What diodes does the Brute Fuzz use?

The Brute Fuzz mixes Russian 1N34A germanium diodes with modern silicon diodes, which sit on the pedal's Texture Toggle. That combination lets the pedal cover both germanium and silicon fuzz tones.

Which Spiral fuzzes is the Brute Fuzz based on?

Tom Cram has described the Brute as a synthesis of everything he learned while experimenting on the Custom Artefact, Blush, and Demhe fuzzes. It is not a copy of any one of them, but a circuit drawn from that work.

Sources (2)
  1. Spiral Electric FX Brute Fuzz, Delicious Audio, 2020-09-21
  2. Spiral FX Red Spiral & Brute Fuzz Demos, Premier Guitar, 2020-01-21

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