Doepfer

-------------- Original message ----------------------
From: Romeo Fahl <rfahl@pdx.edu>
> Do you mean something like the Buchla 194 (  
> http://rubidium.dyndns.org/~magnus/synths/companies/buchla/ 
> Buchla_1940_1_200.jpg ) or EMS Octave Filter Bank (  
> http://www.oldtech.com/synth/EMS8OctFil1.html ), but tunable?

More like the Buchla, but, yes, tunable. Just High, Low, and Mid would be suitable, or 2 mids. Really just a crossover. 
The Electrix Mo-FX  uses this simple trick so that you can have different effects on each band.

I believe Plan B has something closer the the EMS Filter bank, the M16:
http://www.ear-group.com/model_16.html

The M16 Looks spectacular BTW, but a simple 3 or 4-way splitter would be very useful and complex enough, as, for example, you would already need 3 delay modules if you wanted to send each band to delay length.

best,
phil