The Hilbish T-Fuzz is a compact octave fuzz pedal from Hilbish Designs, a builder of amps, preamps, and colorful guitar pedals based in Charlottesville, Virginia1. It keeps things simple on the surface: two knobs and a mode switch, with the maker promising a range that runs from classic fuzz tones to what it calls "noisy sputtery fuzz insanity"21.
The pedal was first announced in 2019, when Delicious Audio reported that pedals were expected to ship at the end of September 20191. As of late October 2026, Hilbish Design's product page lists the T-Fuzz as "Coming Soon," so availability comes and goes; the pedal has also appeared priced at $230.00 in the maker's shop23.
An octave fuzz with two modes
Delicious Audio calls the T-Fuzz "a simple, two-knob and two-mode octave fuzz pedal," and that description covers the essentials1. The two modes, red and green, are selected by the mode switch, and they give the pedal two distinct fuzz voices rather than one voice with a variation2.
Hilbish Design describes the difference in plain terms:
"The T-Fuzz can produce classic fuzz tones to noisy sputtery fuzz insanity!"
Hilbish Design product page2
Premier Guitar's reviewer put the red mode to work on rhythm parts, noting that its "red" mode, activated via a low-profile push button, "lends force and focus to power chords"4. So the practical split for a player is heavy and controlled on one side, loud and aggressive on the other.
The controls
The control set is minimal, which is part of the design. Three controls do all the work1:
| Control | What it does |
|---|---|
| Fuzz | Controls the intensity of fuzz2 |
| Volume | Controls overall signal level2 |
| Mode | Switches between two unique fuzz modes, red and green2 |
That is the whole panel. There is no tone control, no separate octave mix knob, and no switch for the octave effect itself; the octave content is part of the fuzz voice, and the mode switch is the only way to change its character21.
Power: 9V, 100mA
The T-Fuzz runs on a 9V supply with center negative polarity and a 100mA draw, per the maker's product page2. Delicious Audio lists the same figures1.
A 100mA draw is substantial for a two-knob fuzz pedal, well above what a typical small analog fuzz needs. If you run a multi-output pedalboard supply, make sure the output you use is rated for at least that current, and check polarity before plugging in: center negative is the standard, but a center-positive supply can damage the pedal.
Where it came from and how it compares
The T-Fuzz sits in a recognizable lineage. Premier Guitar's 2023 review found "a clear sonic relation to classic late-'60s octave fuzzes like the Octavia, Ampeg Scrambler, and Dan Armstrong Green Ringer"4. Those pedals are the reference points most players reach for when talking about octave fuzz, and the reviewer's verdict on how the T-Fuzz differs from them is specific:
"the Hilbish tucks the octave content just a bit further back in the fuzz/octave blend than any of those pedals, making it a touch more practical for power riffing and lending most settings a little extra sustain"4
Premier Guitar review1
In other words, where an Octavia-style pedal pushes the octave up front, the T-Fuzz keeps it more blended into the fuzz, which the reviewer found useful for riffing and sustain. Delicious Audio also noted that the pedal "just received a good review on Premier Guitar"1.
The enclosure artwork is by Mackie Osborne, credited on the maker's product page and in Delicious Audio's coverage21. Hilbish Designs has also built other octave fuzzes in collaboration with King Buzzo of the Melvins, including the Pessimiser line, which places the T-Fuzz within a broader body of the builder's fuzz work3.
Videos
Conan Neutron & the Secret Friends
Questions
What is the difference between the red and green modes on the T-Fuzz?
The mode switch selects between two fuzz voices. Red mode produces what Hilbish Design calls a refined heavy fuzz tone, and Premier Guitar's reviewer found it lends force and focus to power chords. Green mode yields an ear splitting fuzz tone that the maker describes as perfect for noisy leads.
What power supply does the Hilbish T-Fuzz need?
The T-Fuzz runs on a 9V power supply with center negative polarity and draws 100mA. That draw is high for a simple fuzz pedal, so a dedicated or generously rated output on a pedalboard power supply is the safe choice.
Is the Hilbish T-Fuzz an octave fuzz?
Yes. Delicious Audio describes it as a two-knob and two-mode octave fuzz pedal, and Premier Guitar's reviewer found a clear sonic relation to classic late-'60s octave fuzzes like the Octavia, Ampeg Scrambler, and Dan Armstrong Green Ringer.
Who made the artwork on the Hilbish T-Fuzz?
The enclosure artwork is by Mackie Osborne, credited by both Hilbish Design on the product page and Delicious Audio in its coverage of the pedal.
How does the T-Fuzz compare to the Octavia?
Premier Guitar's reviewer found the T-Fuzz tucks the octave content just a bit further back in the fuzz/octave blend than the Octavia, Ampeg Scrambler, and Dan Armstrong Green Ringer, which makes it more practical for power riffing and lends extra sustain to the octave content.
Sources (4)
- Hilbish T-Fuzz 2-Mode Octave Fuzz, Delicious Audio, 2021-04-20
- T-Fuzz - Hilbish Design, Hilbish Design
- Deathimizer, Hilbish Design
- Hilbish T-Fuzz Review, Premier Guitar, 2021-04-19
