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Product code SIAR
Category Modular synthesizers
Brand Seismic Industries
Availability no
More items available upon order within 30 working days

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A simple design offers very snappy attack times, and wide decay/release times. Two outputs of the envelope signal and two inverted outputs allow it to be patched to several modules without the use of a multiple.
The envelope generator is triggered by a 0 to 5 V rising edge.
Circuit activity is indicated by a white LED.

The fast attack time makes the envelope ideal for percussive sounds.

All I/O signals are available internally via a pinheader on the PCB for prepatching the module inside the case.

Tunable parameters:

  • ATTACK (0.5ms – 3s)
  • DECAY (7ms – 16s)
  • SUSTAIN (0V – 6V)
  • RELEASE (7ms – 16s)




  • OUT 1
  • OUT2
  • INV OUT1
  • INV OUT2


  • +12V 19mA / -12V 14mA


  • Width: 10TE (50,5mm)
  • Depth: 13mm

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