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Fredric Effects Grumbly Wolf main image

Fredric Effects Grumbly Wolf

Fredric Effects Grumbly Wolf

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Page last updated Feb 10, 2026

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Description

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Step into the world of sonic exploration with the Fredric Effects Grumbly Wolf, an uncategorized beast of a pedal that offers musicians a broad canvas for tonal creativity. This versatile stompbox is designed to deliver a wide array of gritty, growling tones, ideal for those who crave a raw and authentic sound. Handcrafted in the UK, the Grumbly Wolf combines vintage-inspired circuitry with modern reliability, ensuring that each note you play is as expressive as your musical vision.

The Grumbly Wolf stands out with its ability to morph from a subtle overdrive to a full-on fuzzy roar, making it perfect for both classic rock riffs and experimental soundscapes. Its intuitive controls allow you to shape your sound precisely, whether you're looking for a warm, bluesy crunch or a thick, saturated fuzz. True bypass switching ensures your signal remains pure, maintaining the integrity of your guitar’s tone when the pedal is not engaged.

Designed with the gigging musician in mind, the Grumbly Wolf is housed in a robust enclosure that can withstand the rigors of the road. Its compact size means it will fit easily into any pedalboard setup, offering you flexibility without compromising on sound quality. Whether you're a seasoned professional or an adventurous hobbyist, the Grumbly Wolf is your ticket to a world of untamed sonic possibilities.

Key Features:

Handcrafted in the UK
Vintage-inspired circuitry
Versatile tonal range from overdrive to fuzz
True bypass switching for signal purity
Compact and durable design for easy pedalboard integration

Product specs

Effects	distortion, fuzz, overdrive
Power	9V
Bypass	true bypass
Analog/Digital	analog

Videos

Magnetic Effects

Magnetic Effects

Fredric Effects Grumbly Wolf

Video thumbnail for Fredric Effects Grumbly Wolf by Magnetic Effects

Fredric Effects Grumbly Wolf

Magnetic Effects

Magnetic Effects

Video thumbnail for Fredric Effects Grumbly Wolf by LongFallBoots

Fredric Effects Grumbly Wolf

LongFallBoots

Reviews

5.0 out of 5

Based on 1 Review and 3 Ratings

5 star

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1 star

matthewrpollard

matthewrpollard

143

almost 8 years ago

Great clone of the MXR Distortion+ with added Green Ringer octave fuzz/ring mod

Great sounding unit solidly built switches from overdrive to fuzz with added octave up, very versatile and a great buy.

1

Reply

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Alternative Rock

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