Description

Roland MKS-70 Super JX Synthesizer- $1499! Fresh from being fully serviced at Synths When!

The Roland MKS-70 is a rack-mounted version of the JX-10 synthesizer, combining two JX-8P sound engines for a powerful 12-voice analog polyphonic synthesizer. Released in 1986, it’s celebrated for its lush, warm tones, flexible programming, and robust MIDI integration, making it ideal for both vintage enthusiasts and modern producers.

Specifications

  • Synthesis Type: Analog subtractive synthesis
  • Polyphony: 12 voices
  • Oscillators: 2 digitally controlled oscillators (DCOs) per voice
    • Waveforms: Sawtooth, square, pulse, and noise
  • Filters:
    • 24dB/octave low-pass filter with resonance
    • Dynamic control via velocity and aftertouch
  • Envelopes:
    • 2 ADSR envelopes per voice (filter and amplitude)
  • LFOs:
    • 2 LFOs with multiple waveforms and routing options
  • Preset Memory:
    • 64 factory presets
    • Expandable via external cartridges
  • MIDI: Full MIDI implementation, including SysEx for deep editing
  • Dimensions: 19″ rack unit, 3U height
  • Country of Manufacture: Japan

Design Features

  • Dual Layering and Splitting: Each patch can combine or split two tones, effectively creating rich, layered sounds or complex splits.
  • Advanced Programming: Deep sound design potential through adjustable parameters and modulation routing.
  • Rack Format: Compact design suitable for studios and live rigs.
  • PG-800 Compatibility: External programmer (sold separately) allows for hands-on control.

Tone and Application
The MKS-70 excels at producing lush pads, rich strings, smooth leads, and powerful basses. Its analog sound engine delivers warmth and depth, making it a favorite for synthwave, ambient, pop, and film scoring. The dual DCO architecture ensures stability while retaining analog character.

Collectability and Market Value
The Roland MKS-70 is highly sought after for its lush sound and versatility. Its value has steadily increased as vintage analog gear continues to gain popularity. Units in good condition, particularly with the PG-800 programmer, are especially desirable among collectors and producers.