The Jupiter-8, or JP-8, is an eight-voice polyphonic analog subtractive synthesizer produced by the Roland Corporation in early 1981. The Jupiter-8 was Roland's flagship synthesizer for the first half of the 1980s. Although it lacked the soon-to-be standard of MIDI control, later model Jupiter-8s did include Roland's proprietary DCB interface, and all of them sported advanced features and the ability to split the keyboard into two zones, with a separate patch active on each zone.
The Jupiter-8 was Roland's first truly professional analog synthesizer. The Jupiter-8 features 16 rich analog oscillators at 2 per voice, eight voice polyphony and easy programming! At eight voices you can get some pretty thick analog sounds. Easy and intuitive programming via front panel sliders, knobs and buttons for all your tweaking needs. The legacy of the Jupiter synthesizers is due to their unique voice architecture and design, creating sounds that were so unreal and amazing that they have to be heard! No other synths in the world can create analog sounds as cool and authentic as these.
The Jupiter-8 was the biggest and fattest of them all (Jupiters and Junos)! It was one of the first synths to allow its keyboard to be split and layered - it's eight voices of trance heaven! Cross-mod, oscillator sync, a great LFO and a classic arpeggiator are also on-board. There's also a killer resonant analog low pass filter, same as the Juno-6 / 60, with the added option of choosing 2-pole (12 dB/oct) or 4-pole (24 dB/oct) modes as well as a separate high-pass filter. Unfortunately for the earlier models, tuning was very unstable but that seemed to be resolved in later models. Unlike its smaller counterpart, the Jupiter-6, the Jup 8 does not feature MIDI, only Roland's DCB sync can be found on some models. However, MIDI retro-kit's are available from various companies. Patch presets can store keyboard splits, arpeggiator settings, voice assign mode, hold, portamento and modulation settings.
The Jupiter-8 is consider a flagship synthesizer by many professionals and since it has been discontinued in 1984, it has continued to change owners for exhuberant prices in excess of $10 000.
Polyphony - 8 voices
Oscillators - 2 VCO's per voice (16 oscillators's!) switchable between triangle, sawtooth, pulse, and square waves plus noise on OSC 2
LFO - 4-waveform (sine, tri, ramp, random) LFO
Filter - Low pass filter with 2-pole (12 dB/oct) and 4-pole (24 dB/oct) modes, Env Mod, LFO MOd, Key Follow. Separate 6 dB/oct high pass filter.
VCA - Standard ADSR and mixer to balance oscillator levels
Memory - 64 patches and 8 patch presets
Keyboard - 61 note keyboard
Control - DCB Roland to Roland sync/interface on some models
Date Produced - 1981 - 1984
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