Tyrus | OEPICUS Future Audio Instruments

Fuzz

Tyrus

Boost & Envelope Wavefolder

Tyrus captures the exact moment harmony is coaxed into a state of transformation. It is not your standard dirt box—though it handles 'grisly' with surprising grace once the gain starts to climb.

Instead of just masking your tone, Tyrus pairs an always-on analog boost with a reactive wavefolder to make the signal an extension of your hands. Play with a light touch, and the tone stays glassy and articulate. Dig in, and you will feel the waveform bend and fracture, surfacing vocal harmonics that feel less like a static effect and more like a living, breathing response to your attack.

Core Character

  • Dynamic Amplitude Engine
    Dynamically modulates the wavefolder's bias based on the intensity of your input signal.
  • Harmonic Wavefolding Bliss
    Increases harmonic complexity by folding waveforms at a set threshold, using dedicated Fold and Bias controls to sculpt rich, evolving timbres.
  • Modular Expressive Control
    Expand sound design potential with CV-controlled FOLD and BIAS, alongside a dedicated envelope output that turns Tyrus into an expressive, fully integrated hub for your modular ecosystem.

In Action (sound from Tyrus)

Controls & Connections

Connections

IN

Input

Guitar/Instrument high-Z input.

OUT

Output

Sends the processed signal to your amplifier or the next pedal in your chain.

POWER

Power In

Requires a 9V DC power supply. Do not connect to AC power.

BIAS

Bias (CV IN)

0-5V CV control of Wavefolder Bias

TONE

Tone (CV IN)

0-5V CV control of Tone Amount

FOLD

Fold (CV IN)

0-5V CV control of Wavefolder Fold Amount

ENV

Envelope (CV OUT)

0-5V CV output of generated envelope signal

Controls

Boost

Gain control of op-amp boost circuit.

Wave Level

Overall affects output volume control from -INF to-xxdB (nominal).

Envelope Fold Mod

Controls the amount of modulation the internally generated envelope has on the BIAS control of the Wavefolder effect.

Fold Amount

Controls the amount of folding the wavefolder implements. The higher the setting, the more folding and harmonics produced. At max, the effect is fuzz-like

Tone

Passive filter based tone control providing a pseudo-notch filter capable of releasing or taming major lows.

Low Tone

Tone control for adding low-end frequencies to the output.

Fast/Smooth Toggle

Down position (FAST) sets the envelope generator to a quick following of the placed dynamics, while the Up position (SMOOTH) sets the envelope generator to smoothly and slowly follow the dynamic playing.

Bypass Switch

Bypass effect enables/disables footswitch for Wavefolder effect.

Audio Demos

Guitar

Dynamic Wavefolding

Bass

Shlocky Bass Wobble

Specifications

Bypass Type

Buffered

Current Draw

85mA

Power Requirements

9V DC

Dimensions

120mm x 60mm x 50mm

Weight

400g

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