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Schlappi’s 100 Grit

100 Grit is a VCF, VCA, and DISTORTION module with eight brass touchpoints, allowing tactile control of various feedback paths.

100 Grit Features

  • 8 brass touchpoints
  • 2 inputs to transistor core low pass filter
  • Voltage control over frequency, resonance, and gain
  • OTA VCA with soft saturation characteristics
  • Distortion circuit based around a vintage headphone amplifier driven into instability
  • Three-position x100 gain switch with off, on, and momentary-on settings
  • Each input and cv input is normalled to a different feedback path (6 total)
  • Separate outputs for the VCA and distortion
  • Can operate as a vintage-voiced VCA and LPF or a screaming distortion and noise effect
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