Quad Envelope / Function Generator

quad functon / envelope generator
4 x function generators
3 modes:

1. ad (attack – decay)
2. asr (attack – sustain – release)
3. cycle (ad envelope loops)

-each function can have a linear or exponential curve.
-wide time range for attack/decay controls:

http://www.intellijel.com/eurorack-modules/quadra/