Caroline Guitar Company Caroline Shigeharu

The Caroline Shigeharu is a fuzz pedal from Caroline Guitar Company, built as an IC fuzz with an octave-up layer running in parallel. Caroline sums up the aim in one line: "Imagine classic Muff-style fuzziness with the punch of a classic overdrive, and you have Shigeharu™."¹ The base sound comes from a cascading hybrid of op-amp and BC184 transistor gain stages, and a second footswitch, called Havoc, drops a parallel octave-up voiced fuzz on top of it while you hold it down.¹

The pedal lists at $219.99.¹

Muff-style fuzz with a parallel octave

The Shigeharu's core is a Muff-style fuzz voice, the family of fuzz circuits descended from the Big Muff, but Caroline positions it as having the punch of a classic overdrive rather than only the saturated sustain of a big fuzz.¹ The circuit runs op-amp and BC184 transistor gain stages in a cascading hybrid, which Caroline credits with "all the sweet singing sustain" the design is built around.²

The octave is the part that sets it apart from a straight Muff clone. Rather than a dedicated octave pedal in its own box, the Shigeharu keeps an octave-up voiced fuzz in parallel with the main fuzz, and you call it up with the Havoc stomp.¹ In Delicious Audio's Big Muff roundup, Griffin Jennings described it this way:

Delicious Audio's Christopher Scapelliti, reviewing the pedal, noted the octave layer is not just a novelty: it "adds extra layer of mid-range frequencies to the tone," which is useful for cutting through the mix.⁴

Controls

The four main knobs are straightforward, as Scapelliti put it: "the pedal's four main knobs are rather straightforward (basically Body, Treble, Drive and Level)."⁴

Two further adjustments live inside the pedal:

• An internal bias/gate control for dialing up broken, spitty sounds¹
• An internal slide switch that locks the octave-up on and converts the Havoc footswitch into a kill/mute switch¹

The Havoc switch itself is momentary by default: the octave-up fuzz sounds only while your foot is on it.¹³ If you want the octave locked in for a whole song, the internal slide switch makes it permanent and turns the same footswitch into a mute, which is handy for killing the signal between phrases.¹

Design and collaboration

Caroline designed the Shigeharu with John Snyder of Electronic Audio Experiments, a collaboration the maker describes plainly: "Shigeharu™ was designed in collaboration with our friend John Snyder at Electronic Audio Experiments."¹ The pedal is built around a cascading hybrid of op-amp and BC184 transistor gain stages, an approach Caroline credits to this design partnership.¹

Delicious Audio has grouped the Shigeharu among lo-fi pedals, alongside effects built around analog tape artifacts, which fits Caroline's general bent toward textured, degraded-sounding circuits.⁵

The Shigeharu Limited

Alongside the standard version, Caroline has offered a limited run variant of the Shigeharu in an Army Green enclosure, part of what the maker calls "limited run variants of some of our existing faves."⁵ The Limited uses the same pedal format and control set as the standard Shigeharu, with its Body, Treble, Drive and Level knobs.⁵

Placement in your signal chain

One practical point Caroline makes about the Shigeharu: it is not fussy about where it sits. The maker states it gives "consistent performance wherever it sits in your signal chain, even after buffers or wireless units."¹ Many vintage-derived fuzz circuits interact with what feeds them and change character after a buffer or a wireless system, so a fuzz that behaves the same in either spot is a real consideration if you run a wireless rig or a buffered pedal earlier in the chain.

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