Laurentide SynthWorks
VG2 Dual Vactrol Gate - 4HP

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Item: N13-4557

Availability: In stock

VG2 Dual Vactrol Gate - 4HP


The Laurentide SynthWorks ‘VG2’ is a Dual Passive Vactrol Gate Eurorack module. No power needed! Each Vactrol Gate has 1 CV Input (gate, envelope, LFO, etc.), 1 Audio Input and 1 Audio Output. The CV Input hits the Vactrol LED, allowing audio to pass through. In addition, there is a simple Low Pass Filter applied to the Audio Output with an Amount (Cutoff) knob. As this is a passive circuit, it will not give users full cutoff control, but it does allow the taming of harsh waveshapes. The LPF is simply the same concept as a guitar's "tone" control. Also, there is an LED at the CV Input for quick visual reference and LED light action!

One thing to keep in mind with a passive circuit using a vactrol is there may be varying differences between each vactrol. One may be slightly "louder" than the other, or have a longer release time or shorter release. These are variations that are inherent with vactrols and can usually be adjusted with a powered circuit, but not with a passive circuit. But, this adds a bit of variation to each vactrol gate making each output unique. It may be found that one output is better for percussive sounds and one is better for melodic sequences. There may also be no noticeable variations at all, but this is part of the vactrol charm and why Laurentide SynthWorks love them so much! Each Vactrol that is used is hand-selected by Laurentide SynthWorks. The discrepancies are bleed when silent & top output level. Laurentide SynthWorks try to pick vactrol's that have little or no bleed when no CV is applied and that they all have a similar output level, so users won't have to worry about one being way quieter than the other.

It is suggested to use a 10V Gate to fully open the vactrol. As this is a passive circuit, it is advisable to use a Buffered Multiple before the CV Input to maintain voltage/amplitude, especially when using the top CV to drive both gates. 


  • Dual Passive Vactrol Gate Eurorack Module
  • Low Pass Filter Amount Cutoff Control for each Vactrol Gate
  • CV Input for each Vactrol Gate
  • LED Indication at CV Input
  • Audio Input for each Vactrol Gate
  • Audio Output for each Vactrol Gate

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  • Eurorack Module
  • 4 HP Width
  • 20mm Depth
  • Current Draw: 0mA @ ±12V

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