dual decay + vca


dual decay + vca

In the front of every ski there is a curve similar to the decay envelope. Skis module has two channels A and B and each of them consists of a decay envelope with knob control and a VCA. There is a TRIGGER input to trigger the envelope, a buffered envelope output which is normalized to the CV input of the VCA. Than there is SIGNAL IN and OUT of the VCA.

There is also a CRUNCH switch which activates a special mosfet lofi VCA circuit inspired by designs of Standa Filip. This adds a slight crunchy character which is changing with the decay of the envelope.

A typical application of Skis is to take two signals (noises for example) and generate drum sounds with adjustable DECAY from them with a TRIGGER signal. However you can also use the two VCAs and two DECAY envelopes independently.


  • Dual decay envelope with adjustable decay time (trigger input, CV output)
  • Dual vca (signal IN, signal OUT, CV IN is normalized to CV output of decay envelope)
  • Crunch feature inspired by circuits of Standa Filip
  • Jumpers for changing the decay envelope to release envelope (vca is on full while there is a gate signal and than it decays)
  • Jumpers for enabling the decay knob to completely mute the decay envelope
  • Jumpers for selecting weird filtering of the output signal (also inspired by Standa Filip)
  • Front panel from oak wood, handmade custom knobs
  • Handmade in Brno, Czech republic


  • 30 mA +12V
  • 20 mA -12V
  • ? mA 5V
  • 35 mm deep
  • Ø 5.00 (1 Votes) Average Rating

This Module is discontinued.

$123 Price in € submitted Jul 20th 2017, 22:43 by haxeri | last Change May 27th, 23:58 by Footkerchief

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