Hi,
I totally agree with you on the sound of CEMs.
Personally I think the DE filter and a A-122 are quite different from another. The A-122 is one of my favourite 4-pole LPs (I have almost all Doepfer filter modules) as is the A-105. The A-122 has a lovely 'wet' and rather softish smack to its sound (with some resonance added and mod). Something I don't find with the DE's filter.
Of course it depends on what you feed into the filter, whether you overdrive it (level) etc etc ...

--- In Doepfer_a100@yahoogroups.com , "nik" <casadoro2002@...> wrote:
>
> I really like theLow pass filter sound of the Curtis chips and especially Cem 3320 that is inside many analogues from the past like SCI Pro One..!
> I am thinking to buy the A-122 which has the curtis chip Cem 3379 which as i know is very similar to Cem 3320
>
> But i already have the A-111-5 (Dark Energy) module which has an one voice curtis chip (cem3394)
>
> So i wanna know if A-122 fllter sound is the same with the filter that Dark energy has...
> Both are curtis but Dark energy's resonance sounds a bit distorted and not so clear ...
> Is A-122 better or different
>