quadra:
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: <0.5ms to well over 30s
ll analog and discrete logic for function generation (totally smooth)
12hp and skiff friendly
quadra expander:
4 x eoc (end of cycle) pulse outputs corresponding to the 4 function generators.
vc of attack and decay (with attenuators) of all four envelopes
2 x analog or (aka peak circuit) logic outputs that are normalled to the two pairs of envelopes (1+2 and 3+4) with attenuators.
special quadrature modes for envelopes 1+2 and 3+4 with jumper on pcb to select two different kinds of looping responses.
connects to the quadra via 4 ribbon cables
12hp and skiff friendly
