2hp Fold
A compact Eurorack wavefolder module released in 2016, delivering analog waveform folding with CV control in just 2HP.
Overview
The 2hp Fold is a Eurorack-format analog wavefolder designed by 2hp and released in 2016. It provides wavefolding and harmonic distortion in a minimal 2HP form factor, making it ideal for space-constrained modular systems. The module processes audio signals to generate rich, evolving textures, from subtle warmth to aggressive, FM-like harmonics.
With two knobs and dual inputs, the Fold offers both manual and voltage-controlled modulation of the folding effect. It is praised for its musicality and ability to enhance simple waveforms, particularly when paired with wavetable oscillators or low-pass gates.
Specifications
| Width | 2HP |
| Power | +12V: 30mA, –12V: 20mA |
| Inputs | 1x audio input, 1x CV input |
| Outputs | 1x audio output |
| Controls | 1x "Fold" knob, 1x "CV Amount" knob |
Design
The 2hp Fold uses a pure analog circuit based on a simple op-amp folding core, tuned to add harmonic complexity without harsh, digital-sounding distortion. The Fold knob adjusts the intensity of the wavefolding effect, while the CV Amount knob scales the incoming modulation voltage for dynamic control.
Context
Released in 2016, the Fold was part of 2hp’s effort to fit essential synthesis functions into ultra-compact panels. It was designed to compete with larger wavefolders like the Intellijel µFold and Doepfer A-137-1, offering similar functionality in a fraction of the space.
Market
The 2hp Fold remains in production as of 2023 and is widely available on the used market. Used prices typically range from $80 to $100 USD. No widespread failure points have been reported, and the module is considered reliable due to its simple analog design.
Market Value
┌──────────────────────────────────────────────────────────────────────────┐ │ 2HP FOLD Apr 2026 │ ├──────────────────────────────────────────────────────────────────────────┤ │ High $600 Latest $600 │ │ Median $130 Trend ▲ Up │ │ Low $19 Volume — │ ├──────────────────────────────────────────────────────────────────────────┤ │ $600 ┤ .│ │ │ │ │ │ │ │ $343 ┤ │ │ │ │ │ │ │ │ │. │ │ $0 ┤ . │ │ ├─────────────────────────────────────────────────────────────────│ │ vol │█ █ █│ │ └─────────────────────────────────────────────────────────────────│ │ 2023-08 2024-12 2026-04│ └──────────────────────────────────────────────────────────────────────────┘
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