This is one of the classic, early VA synthesizers of the late '90s, together with Clavia Nord Lead, Yamaha AN1x, Korg MS2000, and Access Virus.
The JP-8000 was seen at the time as the modern incarnation of the classic Jupiter-8, from 1981. The JP-8000 sought to reproduce the warm tonalities and sheer analog power of its older, bigger brother, of course with a modern slant, adding all kinds of features, from motion control, to RPS, to the fabled Super Saw oscillators. The inclusion of old-school controllers such as arpeggiator and ribbon are very, very welcome.
The Super Saw in particular was the reason why the 8000 was particularly successful as a main keyboard (along with the Virus) in the dance market, especially for Trance. Just like the TB-303 had done for Acid Techno, the JP-8000's Super Saw leads were characteristic of a certain type of Trance that can be roughly called "Anthem Trance", where a melodic but incredibly powerful lead based on a Super Saw patch provided the hook and melody throughout the song.
I bought it because of the knobs and sliders. It was big abd blue and exactly what I needed to become the next Chemical Brothers. I put it through a distortion pedal so that every preset sounded the same and thus my sound journey began. I was looking for a Fatboy Slim meets Pierre Henry ala Psyche Rock. There's no doubt by itself the analog emulation is nothing compared to what is on offer today. But even today that many knobs and buttons in a live studio is not to be overlooked. And at my fingertips, plenty of sounds I wouldn't normally go to, with names like crystal rain and space bells to the more sawtoothy electric leads and arpeggios, maybe this time with some carefully added grit via Native Instruments Driver.
RPS Pattern Memory:
The memory capacity of the JP-8000 is 23,500 notes in its 48 RPS patterns.
For reference, the factory RPS patterns use 4,760 notes.