Triple Wave Folder - 15HP

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Item: N13-1860

Availability: In stock

Triple Wave Folder - 15HP


Three versatile wave folding stages in one module - tons of possibilities!

The Triple Wave Folder (TWF) module was designed with multi-use in mind. It is composed of three identical (with the exception of a couple features) direct-coupled waveshaping stages that can be used independently or in series, the operation is selected according to which inputs are used.

The facility for independent control over each folding stage provides multiple processing options for a variety of sources as well as more interesting explorations with timbre modulations and frequency synthesis than preconfigured waveprocessing profiles.

Each stage can gently "fold" an input source inward on itself as it approaches a threshold set by the panel controls and CV. For example, a sawtooth or a triangle input from a VCO can be bent into a sinewave, and beyond that- doubled in frequency, at constant amplitude... Use them in series and they fold again and again and again!

Some possible uses

 Create complex timbres from audio sources: Possibilities are really limitless. You can control each series of harmonics via the Bias panel controls. So the overall sweep thru the folds when using the VC All/Manual controls is very flexible- and since each stage of the folding process is VC'able, you can use different modulation sources simultaneously for wild animation/ phasing/ beating with a single tonesource.

The normallized DC bias at input 1B can be used to control the symmetry of the folding process, via the control knob. (When the input is not in use)

CV Proccessor for LFOs, envelope generators, sequencers or any control source. Create multiple interesting rhythmic modulation sources from an otherwise dull one(s). Useful in creating more complex, continuously variable shapes for modulation or timing.

Accurately multiply or square up an input signal, shape your triangles and sawtooths into very pure! sinewaves, mangle your sinewaves or anything else into very unpure assymetrical fuzz, generate a cosine (inverse phase sine) functon relative to your VCO's Tri/Sine output (useful for quad panning, stereo modulation). Do a couple of these things at the same time with different sources!


  • Three voltage controlled wave folding stages
  • Stages are connected in series, but may be used independtley (or in parallel with a mixer!)
  • 2 control inputs
  • 3 bias inputs and knob controls
  • 3 audio inputs
  • 3 audio ouputs
  • Pulse output after final stage

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  • Eurorack module
  • 15 HP wide
  • Less than 1 1/2" deep
  • +/-12V: Less than 10mA current consumption

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