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Switched On - Make Noise Optomix Low Pass Gate

Make Noise Optomix

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A two channel Low Pass Gate, providing simultaneous voltage control over amplitude and frequency content of a signal. It is in essence, a Voltage Controlled Filter Amplifier (VCFA) that has an extremely organic response to control signals. The Low Pass Gate is a classic West Coast synthesis circuit.

  • DAMP parameter programs how low pass gate responds to falling control transient, continuously variable from long, slow and ringing to short, fast and muted
  • STRIKE INput allows use of Gate signal to trigger Low Pass Gate circuit, "plucking" or "striking" the vactrol
  • DAMP and STRIKE parameters combine to allow for easy programming of percussive sounds (sharp Attack w/ Voltage Controlled Decay)
  • Normalization of a positive offset to the Channel inputs allows for level-shifting of CV, Envelope Generator and even subtle non-symmetrical clipping of signals
  • Summing stage with an AUXiliary IN allows for chaining of multiple units creating larger mixes
  • Direct coupled, process audio or control signals
  • Utilizes 4 vactrols
  • Width: 8hp
  • Max Depth: 24mm
  • Power: 25mA@ +12V, 25mA @ -12V