The GUP Tech Boo is a fuzz pedal built in Saguenay, Québec, Canada, where the maker says all of its pedals are made by hand. GUP Tech describes it as "the perfect 'Jack Whit-ish' tone machine," and it works two ways: with its Sub, Down and UP knobs turned down it acts, in the maker's words, like a wild fuzz, and bringing those three knobs in adds a monophonic 8-bit style sound on top1. It belongs to the wider family of fuzz pedals GUP Tech builds, alongside designs like the Phoque Face Fuzz and the Bee Fuzz.
The controls
The Boo carries six knobs, split between the fuzz side and the 8-bit side. GUP Tech's product page describes them as follows1:
| Control | What it does |
|---|---|
| Base | Controls the amount of direct fuzz signal |
| filter | Adjusts the EQ, described by the maker as being like a RAT |
| Level | The overall post-volume of the pedal |
| Sub | Part of the monophonic 8-bit style sound controls |
| Down | Part of the monophonic 8-bit style sound controls |
| UP | Part of the monophonic 8-bit style sound controls |
The split matters in practice. With Sub, Down and UP all the way down, the pedal behaves as a straight fuzz, and the Base, filter and Level knobs shape that sound. Turning the three 8-bit knobs up brings in the monophonic 8-bit character, so the pedal can sit anywhere from a plain aggressive fuzz to something closer to a synth-style effect1. The filter's EQ action being likened to a RAT gives players a familiar reference point for how that knob tames or opens the top end1.
Versions and availability
The Boo has been issued in limited runs. GUP Tech released a "Super sparkle edition" of the pedal in December 20241, and the version covered here is the Douche Edition, one of several sparkle-enclosure Douche editions the maker has produced for pedals such as the Cornichon Douche Edition and the Douche Edition Phoque Face Fuzz1.
The Douche Edition Boo is listed as sold out on the maker's product page as of 26 October 20261.
The maker's page lists a sale price of £77.00 GBP for the pedal1.
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Questions
What power supply does the GUP Tech Boo need?
GUP Tech specifies a 9VDC center-negative power supply for the Boo. That is the standard pedal supply format, so a typical pedalboard power supply or one-spot style adapter with the correct polarity will run it. The maker's product page lists the voltage requirement directly, and the pedal is sold as a standard effects pedal rather than anything with an unusual power arrangement.
How much current does the GUP Tech Boo draw?
GUP Tech lists power consumption for the Boo at 17mA. That is a modest draw by pedal standards, light enough that it fits comfortably on most multi-output power supplies alongside other pedals without worrying about per-output current limits.
Where is the GUP Tech Boo made?
The Boo is made by GUP Tech in Saguenay, Québec, Canada. The maker states that all of its pedals are made by them at that location, so the Boo is a Canadian-built pedal rather than an imported design built elsewhere.
Can the GUP Tech Boo be used as a plain fuzz?
Yes. GUP Tech says that with the Sub, Down and UP knobs turned down, the pedal acts like a wild fuzz on its own. The monophonic 8-bit style sound only comes in when those three knobs are brought up, so a player who wants just the fuzz character can leave them off and use Base, filter and Level.
Is the GUP Tech Boo still available?
As of the maker's product page dated 26 October 2026, the Douche Edition Boo is listed as sold out. GUP Tech has released the Boo in limited editions before, including a Super sparkle edition in December 2024, so availability has been intermittent rather than continuous.
Sources (1)
- Douche Edition, GUP Tech (guptech.ca), 2024-12
