Dave Smith Instruments Evolver Synth Module by Magpel
This was the product that DSI started with. Dave Smith himself, of course, was the man behnd the MIDI spec, the great Prophet synthesizers, the Korg Wavestation, etc.
The Evolver desktop is a monosynth (sort of...) with an awful lot porgrammability. It comes two very real analog oscillators with 2 digital waveshape oscillators banks that come loaded with the Prophet waveforms. All four oscillators are addressable separately in the modulation routings. There are also two low pass filters that can be used in a variety of ways, and they come in 2-pole (12db) and 4-pole (24db) varieties. There is a filter envelope, and amp envelope a freely assignable additional envelope, 4 free assignable lfos, three delay lines, a subtle feedback control and an entirely UN-subtle "hack" control (kind of like a decimator). Oh there's more. A High Pass filter and an awful lot of well designed triggering options, and audio input that comes in just downstream of the oscillators, and audio in level and env detection can be used as a source in the modulation matrix.
The sound is terrific--and extremely well documented on youtube and elsewhere. The longer I spent with the unit, the less I reached for Feedback or Hack, the less, in fact I used the digital oscillators at all. If you focus on osc-->filter--> amp, you've got yourself a straight up analog beast.
I've been delaying getting to a really major feature: the 4x16 step sequencer that just takes this thing over the top. This can be used for polyphonic composition, as each oscillator's pitch can be addressed by a different track of the sequencer, or the sequencer tracks can be used to modulate ANY parameter on the synth. While there are many great presets out there, if you want to her the sequencer used to max effect I recommend you track down the presets created someone who goes by the name Doctor T--masterful use of it, and it just shows how much today's arp and sequencer driven synths blur the line between sound design and micro-composition.
Great piece. Great piece even for folks like me who primarily earthy music with standard instruments--the analog-ness of the Evolver hangs well with aoucstic guitars and drums...