I'm not sure about the QS seiries wiring diagram, but the nanosynth goes like this.
wiring for PC 9 pin D-sub
Alesis----------------------PC 9 pin
1--------------------------------8
2--------------------------------7
3 -------------------------------2
4--------------------------------5
5 -------------------------------3
wiring for PC sweial 25pin D sub
Alesis----------------------PC 25 pin
1-------------------------------5
2 ------------------------------4
3-------------------------------3
4-------------------------------7
5-------------------------------2
8 pin plug diagram
678
34 5
1 2
hope this helps.
[This message has been edited by kaboombahchuck (edited 11-09-2001).]