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4ms Percussion Interface + Expander

4ms

Regular price CAD$219.00


The Percussion Interface (PI) and PI Expander are a pair of Eurorack modules that generate gates and envelopes from acoustic drums, samplers, drum machines, and virtually any audio source.

Converting microphone, instrument, line and modular signals into CV and clock/gate signals, the PI and PI Expander are suited for synchronizing sequencers or other modules to the rhythm of an audio track or live percussion. The modules can simultaneously be used as a pre-amp for microphones or line-level signals, while generating inverted envelopes useful for side-chaining. The PI module contains all the core functionality and can be used without the Expander to conserve space. The Expander requires the main PI modules and adds three gain stage options, a modular-level audio output jack, a 1/4" (6.35mm) input jack, and envelope attenuation capabilities. The two modules are only sold together, they are not available separately.

  • Width: 4HP , 4HP
  • Depth: 25mm , 25mm
  • Power: 104mA @+12v / 65mA @-12v , 69mA @+12v / 56mA @-12v
  • Manual
Features
  • 16 sine-based oscillators bound to intervals of a selected Scale
  • 30 factory-programmed, user-writeable scales organized in three groups:
    • 12TET: all notes quantized to equal temperament, repeating over octaves
    • Octave: unquantized notes, repeating over octaves
    • Free: unquantized notes, repeating over the interval between the lowest and highest note
  • A simple method to program (“Learn”) your own scales manually or with a CV/Gate keyboard
  • Three Twist phase distortion effects
  • Three Warp wave distortion effects
  • Three algorithms of Cross FM for modulating the oscillators with each other
  • Mono or stereo output with selectable panning algorithm
  • Freeze button and jack to freeze the frequency of some of the oscillators, with selectable algorithm
  • Two 1V/oct inputs: Pitch (non-quantized), and Root (quantized)
  • High-accuracy, temperature-stable, eight octave range (-2V to +6V), can be calibrated to any keyboard
  • Six bi-polar CV inputs (-5V to +5V)
  • Two gate inputs for automated Learning and Freezing
Video


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