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MU Envelope Generator ADSR 120

MU Envelope Generator ADSR 120
MU Envelope Generator ADSR 120

The ADSR 120 is one of the core modules essential to an analogue synth. Most frequently used to control a VCA but equally used to control the cut-off of a VCF. Larger systems can expect to have the need for many ADSR modules. In addition to the ADSR 120, a voltage controlled version, the VC ADSR 121 allows for dynamic changing of the ADSR values from external control sources. 


  • Controls for Attack, Decay and Release envelope phases along with the Sustain level
  • Time range selection switch x1 / x10
  • Gate input for full ADSR output
  • Manual gate button
  • LED indicator of gate pulse
  • AR Trig input for full AR envelope from a trigger pulse
  • The AR Trig input can also be used for re-triggering the attack / decay phases whilst the gate input is active
  • Gate output for cascading ADSR modules. Gate pulse width equal to the attack, decay and sustain periods (just the attack period when in AR trig mode).


  • Supply voltage +/-15Vdc (Uses included in-line voltage regulator module with both MOTM and MU headers) 
  • Supply current  +20mA / -23mA
  • Output level 0-10V
  • Typical delay times

    Short Time Mode
    Long Time Mode

    Available to order, dispatched in 3-4 weeks
Ex Tax: £145.00