PG8X

Martin Lüders has released the latest beta version of PG8X, a fantastic freeware emulation of the legendary Roland JX-8P analogue synthesizer.
A native C++ version.
The interface looks beautifully retro and provides quick access to all of the available control parameters in a single panel, which is always a big plus for virtual synthesizers. But all of that visual beauty pales in comparison to PG8X’s sound – the organic, warm and rich sound that one still can’t obtain from most virtual synthesizers nowadays, free or commercial. The secret of PG8X’s sound is in the filter section, in our opinion. The synth’s brilliantly coded VCF saturates and warms up the sound produced by the oscillators, resulting in that authentic 80s sound that will remind you of the soundtracks of old VHS cartoons and movies.
http://www.kvraudio.com/forum/viewtopic.php?f=1&t=310856