Hey Arturia!
You have a GREAT selection of soft-synths in the collection, including all the major players like Moog, ARP, Yahama, Synclavier and Buchla, but why no ARP 2500?
There are several reasons an ARP 2500 emulation would make a great soft-synth:
1. The matrix slider patching would lend itself to software implementation and be easier to read than a jumble of patch cords.
2. The ARP 2500 had the 1045 "voice module" with a complex osc, filter, vca and 2 envelopes in 1 module.
3. The ARP 2500 had the 1046 quad envelope generator, which is useful because most hard- and soft-synths need more env-gens.
4. The ARP 2500 envelope generators had initial delay, which is useful for things like vibrato swell or breath noise.
5. The ARP 2500 1016 noise module had both audio- and control-rate noise sources.
6. The standard oscillator module 1004p had a mixer for the various waveforms, allowing one to produce, e.g., a sine with a bit of sawtooth overtones.
7. The ARP 2500 had the 1047 multimode filter with LP, HP, BP and BR outputs in parallel.
I could go on, but you get the point...
Stephen Pope
Santa Barbara, CA, USA