Quad function / envelope generator

SKU: QUADRA-3U Category:


Quadra packs four versatile function generators into one 12 HP module.

  • Each function generator has 3 selectable modes:
    • AD (Attack – Decay)
    • AHR (Attack – Hold – Release)
    • Cycle (AD envelope loops)
  • The curve of each channel can be changed from linear to exponential.
  • Wide time range for attack/decay controls: <0.5 ms to well over 30 s.
  • All analog and discrete logic for function generation for totally smooth and continuous waveforms.
  • The Quadra Expander provides voltage control over each channel’s attack and decay times, as well as logical OR combinations and a special quadrature mode.


Width: 12 HP
Max Depth: 38 mm
Power: 53 mA @ -12 V
98 mA @ +12 V