I guess the above demo made by the author of KX-Polymod speaks better than 1000 words. KX-Polymod is a analog modular polyphonic synthesizer suited best for 70's analog leads. If you ever tried any of KX77Free plugins you probably know what to expect (tons of knobs and that classic, vintage, analog flavour) :)
KX-Polymod includes 128, very nice, presets so it's pretty much ready to use in your own music productions.
Download: KX77Free - KX-PolyMod