Shop Now, Pay Later with Affirm. Learn More

Aperture Resonant LPG (Assembled) - 8HP

Be the first to review this product

Item: N13-5748

Availability: Out of stock

Aperture Resonant LPG (Assembled) - 8HP

The RYO Aperture is modeled after the classic Buchla 292 Lopass Gate, allowing broader variety of tones than its vintage counterpart. Aperture can act as a VCA, a lowpass filter, or both simultaneously. The addition of a switchable resonance circuit takes the LPG concept into more modern territory, allowing for everything from gummy, bubbly sounds to shrieking resonance.

The Aperture features a "Klang" input, which allows for the classic vactrol strike sound - a quick attack with a very natural ringing decay not unlike plucking a partly muted string.

An input drive section allows level control of incoming signals, even allowing heavy overdrive for really giving the filter something to bite into.


  • Resonant lowpass gate with 12dB lowpass VCF, VCA, and LPG modes
  • Switchable resonance circuit with level control
  • CV input for Filter Cutoff and/or Amplifier level with attenuator
  • Controllable input gain (even amplifies into distortion)
  • AC-coupled signal input
  • Klang input for classic LPG pluck
  • With resonance on in VCA mode, becomes 6dB/oct LPG rather than 12dB/oct in "both" mode

Questions on Aperture Resonant LPG (Assembled) - 8HP

No questions asked yet

Ask Your Own Question


  • Panel width: 8hp
  • Depth: 27mm
  • Max current draw: self oscillating at max cutoff 50mA @ +12V / 45mA @ -12V
  • Average current draw: 25mA @ +12V / 45mA @ -12V

Customer Reviews

Write Your Own Review

You're reviewing: Aperture Resonant LPG (Assembled) - 8HP

How do you rate this product? *

  1 star 2 stars 3 stars 4 stars 5 stars