What it is and what it was built for
The Doepfer A-140 ADSR is a module in the Doepfer A-100 modular synthesizer series. It was built to generate standard ADSR envelopes for shaping sound in modular synthesis.
How it works, in terms a player would use
It is an ADSR envelope generator module. It shapes amplitude, filter or modulation signals over time using Attack, Decay, Sustain and Release stages. A player triggers it with a gate signal and routes its output to a VCA, filter or other CV destination.
What it does better than anything else
It does better than nothing: it delivers a clean, functional ADSR response in the A-100 format, fitting the Doepfer ethos of utility-first design.
What it does badly
It does badly where flexibility is needed: no retriggering, no delay, no hold, no slew, no bipolar output, no LED indicators, no CV control over individual stages.
What people made with it
No specific works, artists or recordings are cited in the source material.
Who should use it, and who should not
A player who already owns an A-100 system and needs a spare, simple ADSR should use it. Anyone needing CV control, visual feedback or extended timing options should not.
Is it worth your time
It is worth your time only if you need a basic, no-frills ADSR in an A-100 system. It offers no modulation inputs, no reset or loop functions, and no visual feedback — just four knobs and two jacks.





