> What is the optimum number of oscillators for a Doepfer system

Well that would very much depend on the type of patch you're
typically going to want to make. In general i think that you can not
have enough oscillators in a modular. I've currently got 5 ( 1*
a-111, 3*a-110, 1*planB model15) and am looking at a couple more,
probably another a-111, two more model 15's, a MFB triple vco and the
new livewire vco. Oh and obviously the dynamic doepfer vco and the
quadrature thru-zero vco once they become available ,-)

If you do a lot of drones or single-pitch sounds you can also use the
doepfer quad lfo as a sound-source, without frequency CV however.
I've got two of those for that purpose.

> Can a polyphonic A100 system be realised

Yes. But you'll need a) a MIDI->CV interface that handles polyphony
as well as b) quite a lot of modules (at least one VCO, VCF, VCA +
ENV per voice)

> If i have VCF3 & VCF5 filters in my system now, which filter do you
> recommend i add next
> Thanks.
>

My faves are the Wasp-Filter, the SSM-Filter, the vatrol multimode
and the moog 48 db. I'm quite confident the diode filter is also cool.


Best,

d