The Zorg Effects Glue Fuzz MKII is an analog multi-fuzz pedal that covers Fuzz Face, Big Muff and Octave Fuzz voicings in one enclosure, with a footswitchable octave up section and a set of controls aimed at shaping how the fuzz falls apart. RockBoard's PedalPedia lists its effect types as fuzz, octaver and filter, placing it in the fuzz camp with a foot into octave and pitch territory1. It is an update of the very first Glue Fuzz, and RockBoard's PedalPedia says the new version delivers a ton of major improvements1.
The controls
The MKII pairs a conventional fuzz control set with two footswitches and a redesigned tone section. Guitar Pedal X's Stefan Karlsson lists the controls as Volume, Gain, a tone section, and the Bypass/Fuzz and Octave footswitches2.
| Control | What it does |
|---|---|
| Volume | Output level2 |
| Gain | Amount of fuzz2 |
| Tone knob | Dials in between vintage and modern tones1 |
| Tone stack | Redesigned with two pots and two switches, which RockBoard's PedalPedia says offers endless possibilities1 |
| Bass switch | At high gain, overloads the fuzz with bass for a dirty, more compressed sound1 |
| Glue knob | Destroys the fuzz more or less depending on setting, producing velcro sputters and gated artifacts4 |
| Bias pot | Still allows you to destroy more or less the fuzz, per the maker1 |
| Octave footswitch | Toggles between classic and octave up tones while playing1 |
The Glue and Bias controls are the pair that give the pedal its name and its character. Delicious Audio's Brent P. Gladless, writing on the original's signature control, put it this way4:
"Still destroys the fuzz more or less depending on how you set it. Still makes those velcro sputters, those gated artifacts."
Of the addition of Bias on the MKII, he said: "Now there's a Bias knob alongside it. Two chaos agents working together."4 In other words, the MKII gives you two independent ways to starve the circuit into self-destruction, which is where the gated, sputtering textures come from.
How it differs from the original Glue Fuzz
The MKII is a rebuilt version of the first Glue Fuzz, and the changes fall into three areas14:
- Footswitchable octave. The octave up section is now available via a footswitch, so you can toggle between classic and octave up tones while playing rather than committing to a setting beforehand1.
- Redesigned octave tone. RockBoard's PedalPedia says the octave up has been redesigned for a nicer octave up tone, almost whammy like when playing up in the neck with your neck pickup on1. Delicious Audio's verdict on the same change: "The redesign fixed what was always just slightly off about the original octave, cleaner tracking, nastier top end."4
- Expanded tone stack. The tone stack has been redesigned with two pots and two switches, replacing whatever simpler arrangement the original carried1.
Delicious Audio's Gladless opened his piece on the original's reputation with a plain assessment: "The first Glue Fuzz was a sleeper."4
Circuit and build
Under the hood, Karlsson counted seven transistors, which he described as mostly a mix of 2N3904 and BC550C, with two placed face-to-face that he could not identify2. The pedal uses a wood-panel aesthetic and format, per his earlier feature on it3.
What reviewers said
Karlsson's review on Guitar Pedal X, published 17 March 2026, summed the pedal up this way2:
"A really smart Multi-Fuzz pedal with a thousand different voicings onboard."
He also shared a set of settings he was using at the time: Tone at 12:30 o'clock, Mid at 2 o'clock, Glue (Bias) at 8 o'clock, Volume at noon, mids cut off, bass boost on, and Gain at 3 o'clock2. Both Guitar Pedal X pieces put the pedal at €200 on the Zorg Effects Webstore, in February and again in March 202623.
The €200 figure is the price in euros as reported by Guitar Pedal X on the maker's webstore; no US dollar price appears in the available coverage.
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Questions
What power supply does the Glue Fuzz MKII use?
The Glue Fuzz MKII runs on a 9V DC supply with a center negative plug, the standard pedalboard supply format, and draws 10mA. That low current draw means it sits comfortably on a shared supply with other pedals, though as with any negative-tip pedal, keep it off any AC or positive-tip outputs.
Is the Glue Fuzz MKII analog?
Yes. Zorg Effects lists the circuit type as analog. The octave up section is produced within that analog circuit rather than by digital pitch tracking, which is why the maker describes the octave tone as almost whammy like when playing up the neck with the neck pickup.
Does the Glue Fuzz MKII have two footswitches?
It does. Alongside the Volume, Gain and tone controls, the pedal carries a Bypass/Fuzz footswitch and a separate Octave footswitch. The Octave switch lets you toggle between the classic fuzz voicing and the octave up tone while you are playing, without bending down to turn a knob.
What voicings does the Glue Fuzz MKII cover?
Guitar Pedal X's Stefan Karlsson describes it as a multi-fuzz covering Fuzz Face, Big Muff and Octave Fuzz voicings, and found it could generate those three voicings with ease. The tone stack, bass switch and Glue and Bias controls then shape each of those starting points further.
Where can I find the Glue Fuzz MKII manual?
Zorg Effects publishes an English manual for the Glue Fuzz MKII as a PDF on its own site, linked from the pedal's RockBoard PedalPedia product page under Manual (EN). The file sits at zorgeffects.com/images/Manuels/Glue_Fuzz_MKII_Manual_Eng.pdf.
Sources (4)
- Glue Fuzz MKII by Zorg Effects, RockBoard PedalPedia, 2026
- Guitar Pedal X, Guitar Pedal X, 2026-03-17
- Guitar Pedal X, Guitar Pedal X, 2026-02-25
- New Pedal: Zorg Effects Glue Fuzz MkII, Delicious Audio, 2026-02-20