V2CA

2 Instances of Vactrol Based VCAs.

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$20
V2CA

This module features 2 instances of Vactrol-Based Voltage Controlled Amplifiers (VCA).

Functionality

  • Due to the use of vactrols, it can smooth out square wave signals (such as GATEs) and can be used as CV.
  • With a frequency response limited to 20Hz, it remains unaffected by noise in the CV signal.
  • It may occasionally exhibit slight audio leakage even when the CV is turned off, resulting in pleasant analog imperfections.

Inputs

  1. IN1 Audio Input for VCA 1
  2. CV1 CV Input for VCA 1
  3. IN2 Audio Input for VCA 2
  4. CV2 CV Input for VCA 2
  5. NC Not connected

Outputs

  1. OUT1 Audio Output for VCA 1
  2. OUT2 Audio Output for VCA 2
  3. MULT A socket of the multiplier for either audio or signal
  4. MULT A socket of the multiplier for either audio or signal
  5. MULT A socket of the multiplier for either audio or signal

Controls

  • CURVE 1: Adjusts VCA1's vactrol input voltage. Turning clockwise creates a softer VCA response, while counterclockwise produces a tighter response.
  • CURVE 2: Adjusts VCA2's vactrol input voltage with the same behavior as CURVE 1.

Additional Parts

This section is only relevant if you are buying the semi-assembled module. You have to source & solder the following parts. You can check our guide on common parts for where to source these components.

  • 2.54mm Header Pins (5-pin) - 2
  • Circular Pin Header Sockets (5-pin) - 2
  • 50K Potentiometers - 2
  • Vactrols - 2