--- In Doepfer_a100@yahoogroups.com , "ilanode" <techmeier@...> wrote:

>
> Hello, Since I gave the A105 a try out of curiosity I'm tempted to

get

> one. Pro: Incredible good job on bass patches. Con: based on an
> obsolete IC. From my *brief* experience I thought it works best

with

> square waveforms and is otherwise quite ordinary (I could be wrong).
> I'd like to know from other A105-experienced list members their
> opinion (por and con) about this filter. Sure, it's all a matter of
> taste so it might help to add that I like best the vactrol filters,
> A122 but hardly use the A124 and A120. Since the very chip is also
> used in some PPG synths I should add that I have some of the PPG
> waveforms for my Blacet Mini Wave. Thanks for any input, Ingo
>

hello ingo,

i like the a105 for it's stable resonance down to low frequencies,
for its accurate tracking and for the overall sound.
the self-oscillation is really nice, makes great bass sounds
on its own. from my point of view the only "con" is that
the maximum manual cutoff frequency is not that high, so if
you want to open the filter wide to get an entirely "unfiltered"
sound, you need to apply an additional control voltage in some
cases. but that is just a minor "con", the "pros" make up for
this easily. i have to confess that i haven't tried the
a105 with the blacet mini wave, maybe i should do this during
the next studio session :-)

best wishes

ingo