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MKS-70

Roland MKS-70

MKS-70
MKS-70 (image courtesy of Roland)

Released: 1986

MSRP: $1995US

Synopsis:

The MKS-70 (Super JX) is a rack JX-10, swapping the sequencer for better Sysex implementation. Architecture Class: Conventional (subtractive).

Ebay Description:

The Roland Super JX (MKS-70) is a 2U rack, 12 voice polyphonic, bi-timbral (aftertouch and velocity sensitive) analog synthesizer, featuring dual oscillators (saw/square/pulse/noise waveforms with PWM, sync, and FM), high-pass and resonant low-pass filters, dedicated filter and amp ADSR envelopes, LFO (sine/square/random), portamento, chorus, chase (delay), 100 presets (50 editable), cartridge interface, dual stereo outputs, and MIDI.

Physical

Form Factor Dimensions Weight Audio Input Audio Output Communication Port Control Input Control Output Switch Input Power
2U rack W:480mm(18.875in) D:400mm(15.75in) H:88mm(3.4375in) 7.6kg(16.755lbs) no stereo:2 mix MIDI IN/OUT/THRU programmer MIDI MIDI sustain 32W AC (IEC C9 to NEMA 1-15P)

Interface

Compatibility Multitimbral Memory Program Memory External Storage External Programming UI Input UI Output
- user:64 cartridge:64 preset:50 user:50 cartridge:50 M-64C cartridge PG-800 menu florescent display

Architecture

Multitimbral Polyphony Unison Architecture
2 12 2 (mono:2) [DCO1+DCO2->HPF->VCF->VCA]+[DCO1+DCO2->HPF->VCF->VCA]

Output

Effects Pan Modulator Volume Modulator Headphone
chorus chase:delay no aftertouch ENV-2 velocity MIDI-CC7 yes

Control

Arpeggiator Arpeggiator External Sequencer Sequencer Memory Sequencer External Continuous Program Change
no N/A 1 track real time (only available with cartridge) M-16C:400 or M-64C:1600 notes trigger MIDI-CC1 MIDI-CC5 MIDI-CC7 MIDI

Keyboard

Key Pressure Chord Memory External Control External Sustain Key Scaling Velocity Curves
yes yes MIDI pedal MIDI 1 no

Source

Name Signal Class Waveform Octave Range Amplitude Modulator Harmonics Modulator Pitch Modulator Wave Assign Modulator
DCO-1A digital pulse square saw 2-16' no PWM FM ENV-1|ENV-2 LFO MIDI-PitchBend portamento velocity no
DCO-2A digital noise pulse square saw 2-16' ENV-1|ENV-2 PWM sync ENV-1|ENV-2 LFO MIDI-PitchBend portamento velocity no
DCO-1B digital pulse square saw 2-16' no PWM FM ENV-1|ENV-2 LFO MIDI-PitchBend portamento velocity no
DCO-2B digital noise pulse square saw 2-16' ENV-1|ENV-2 PWM sync ENV-1|ENV-2 LFO MIDI-PitchBend portamento velocity no

Filter

Name Signal Class IC Resonant Shape Frequency Modulator Resonance Modulator Shape Modulator
HPFA analog opamp no high pass no no no
VCFA analog IR3R05 yes low pass aftertouch LFO key ENV-1|ENV-2 velocity no no
HPFB analog opamp no high pass no no no
VCFB analog IR3R05 yes low pass aftertouch LFO key ENV-1|ENV-2 velocity no no

Envelope

Name Level Rate Loop Polarity Trigger Level Modulator Rate Modulator
ENV-1A sustain attack decay release no DCO VCF no no no
ENV-2A sustain attack decay release no DCO VCF no no key
ENV-1B sustain attack decay release no DCO VCF no no no
ENV-2B sustain attack decay release no DCO VCF no no key

LFO

Name Waveform Delay Polarity Sync Delay Modulator Level Modulator Rate Modulator
LFOA sine square random yes no no no aftertouch MIDI-CC1 no
LFOB sine square random yes no no no aftertouch MIDI-CC1 no
Conventional Models
RS-101 RS-202 RS-505 RS-09 SA-09 VP-330 SH-3 SH-5
SH-1000 SH-2000 SH-7 SH-1 SH-2 SH-09 SH-101 MC-202
CMU-810 TB-303 CMU-800 Juno-6 Juno-60 MKS-10 Juno-106 Juno-106s
HS-60 MKS-7 Juno-1 HS-10 Juno-2 HS-80 MKS-50 Jupiter-4
MRS-2 Jupiter-8 Jupiter-6 MKS-80 JX-3P MKS-30 GR-700 JX-8P
JX-10 MKS-70