The AJH Synth ‘MiniMod VCA’ is a Discrete Cascaded VCA module in the Eurorack format. It features two fully discrete transistor VCA cores which are hardwired in series. There are two audio inputs each with their own level controls along with two CV inputs which control the gain of VCA 1 and a Master CV input and level control which controls the gain of VCA 2. There is also an offset control so that a preset gain can be added to VCA 1. Internally it operates at the same voltage and signal levels as the early Moog Model D voltage controlled amplifier and the output of VCA 1 is hardwired to the input of VCA 2.

A high gain (overdrive) mode can be selected for VCA 1 with an onboard jumper, this overdrives the module into soft clipping and in this mode the second VCA can be used in a similar way to the Master volume on a guitar amplifier so that variable levels of distortion (or "grit") can be added to the sound. 


  • Discrete Cascaded VCA Module based on the early Moog Model D synthesizer VCA design
  • Two Fully Discrete Transistor VCA Cores which are hardwired in series
  • Two Audio Inputs each with their own Level Controls
  • Two CV Inputs which control the gain of VCA 1
  • Master CV Input and Level Control that control the gain of VCA 2
  • Offset Control (Preset gain can be added to VCA 1)
  • VCA 1 Output is Hardwired to the VCA 2 Input
  • Audio Output

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.learn more
  • MiniMod VCA (Silver)

Perfect Circuit

Burbank, CA, United States
Joined Reverb:2015

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