ST Modular – ADSR – 4hp panel & pcb set

£12.50 (exc VAT)

ST Modular website

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This listing is for an unpopulated pcb & panel set only.


In stock


  • ADSR Envelope Generator with three Length Modes

    ADSR is a classic Envelope Generator creating an envelope with an Attack, Decay, Sustain and Release stage.
    It can be triggered with a Gate signal and will ouput the envelope with a range of 0V to +8V on the regular output jack and 0V to -8V on the inverted output jack.

    The envelope may be re-triggered using the RTRG input as long as the Gate on the Gate Input is high.

    ADSR has three different Length Modes from Slow over Moderate to Fast. The envelope can be very short (20uS) up to very long (110s) making it a useful tool for percussion like sounds and evolving soundscapes. The Moderate Mode is the best option for regular synth sounds.

    The LED between the A (Attack) and D (Decay) potentiometer indicates the current state of the envelope.

    • ADSR Envelope Generator
    • Regular and Inverted Ouput
    • Re-Trigger Input
    • Three Length Modes
    • Snappy from 20 micro seconds until evolving to 110 seconds
    • Skiff friendly
    • Wrong polarity protection

    The module consists of two boards:
    • Front PCB Panel
    • Main PCB

    • 25 mA +12V
    • 25 mA -12V
    • 0 mA 5V
    • 25 mm deep



Additional information

Weight 90 g
Dimensions 128.5 × 20 × 4 mm