The Intellijel QUADRA module is a quad function generator. Each of the four channels can be used as an envelope or as LFO.
3 modes available:
1. ad (attack – decay)
2. ahr (attack – hold – release)
3. cycle (ad envelope loops)
Each function can have a linear or exponential curve.
Wide time range for attack/decay controls: <0.5ms to well over 30s
All analog and discrete logic for function generation (totally smooth and continous waveforms)