Back in 1984, this rackmount powerhouse became the only MKS module from Roland to rock true analog VCOs, setting it apart from its DCO siblings and delivering that raw, warm Jupiter magic in a compact 2U form.
It's an 8-voice polyphonic beast with 16 Curtis CEM3340 oscillators—two per voice—paired with a resonant low-pass filter, high-pass filter, dual invertible envelopes, LFO, noise generator, and PWM for everything from fat pads to searing leads. Front panel offers essentials like a Tune knob, Volume slider, Auto-Tune button, and mode switches for Poly 1, Poly 2 (unique unison clustering), Unison 1/2, Whole, Dual, and Split, plus 64 internal single and combination patches expandable via M-64C cartridge. Full MIDI in/out/thru handles velocity and dynamics, while the optional MPG-80 programmer unlocks sliders for deep edits over a dedicated port. Battery backup keeps your sounds safe.
Players love its thick, organic tones—think Vangelis-style atmospheres or Hardfloor techno punch—and the auto-tune keeps those vintage oscillators honest, though some note frequent tweaks and tedious front-panel programming without the MPG. A refined Jupiter-8 in module form, it's a staple for anyone chasing classic analog depth.
