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Roland Jupiter-8

Jupiter-8
Roland Jupiter-8 Synth, 1983 (2039658601).jpg
Manufacturer Roland Corporation
Dates 1981–1985
Price ¥980,000 JPY
$5295 US
£3995 GBP
Technical specifications
Polyphony 8 voices
Timbrality 2
Oscillator 2 VCOs per voice
LFO 1 triangle/square/sawtooth/random
Synthesis type analog subtractive
Filter

12 or 24 dB/octave resonant lowpass,
non-resonant highpass

1 ADSR envelope for VCF
Attenuator 1 ADSR envelope for VCA
Aftertouch expression No
Velocity expression No
Storage memory 64 patches
Effects None
Input/output
Keyboard 61 keys
External control DCB (on later models)

12 or 24 dB/octave resonant lowpass,
non-resonant highpass

The Jupiter-8, or JP-8, is an eight-voice polyphonic analog subtractive synthesizer introduced by 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 is an 8-voice polyphonic analog synthesizer. Each voice features two VCOs with cross-modulation and sync, pulse-width modulation, a non-resonant high-pass filter, a resonant Low-pass filter with 2-pole (12 dB/octave) and 4-pole (24 dB/octave) settings, an LFO with variable waveforms and routings, and two envelope generators (one invertible).

Features include adjustable polyphonic portamento and a hold function for infinite sustain of notes and arpeggios. A versatile arpeggiator can be synchronized with external equipment by using the proprietary Roland DCB interface, clock input via CV jacks on the rear panel, or one of the aftermarket MIDI kits from Encore or Kenton. An assignable bender can be used to control pitch or filter frequency.


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