Doepfer

> Looking around, it seems a lot of systems contain the "multiple" 
module
> in at least pairs or more.  What do these do for me?  I'm a little
> unclear.
> 
 You can also use the multiple for non linear mixing as Allen Strange 
says in his book. You patch two or more oscillators to two different 
jacks/ multiple ins and use another jack as output - a simple mixer - 
which will introduce a more profound beating of the oscillators.

keld