Synth Museum

"Synthesizer preservation via research and education."


The Web SynthArk

MRS-2

Roland MRS-2

MRS-2
MRS-2 (image courtesy of Roland)

Released: 1980

MSRP: no

Synopsis:

Monophonic Jupiter-4, swapping arpeggiator, chorus, and S/H for dual oscillators and gate/CV interface. Architecture Class: Conventional (subtractive).

Ebay Description:

The Roland ProMars Compuphonic (MRS-2) is a 37 key, monophonic analog synthesizer, featuring a single oscillator (saw/square/pulse waveforms with PWM and sub-oscillator), noise, high-pass and resonant low-pass filters, dedicated filter and amp ADSR envelopes, LFO (saw/square/triangle), portamento, 18 presets (8 editable), and arpeggiator.

Physical

Form Factor Dimensions Weight Audio Input Audio Output Communication Port Control Input Control Output Switch Input Power
37 keys W:766mm D:400mm H:162mm 14kg no mono no CV gate bend CV gate sustain 20W AC

Interface

Compatibility Multitimbral Memory Program Memory External Storage External Programming UI Input UI Output
no no preset:10 user:8 no no knobs/sliders LED

Architecture

Multitimbral Polyphony Unison Architecture
no 4 no VCO->HPF->VCF->VCA

Output

Effects Pan Modulator Volume Modulator Headphone
no no EG yes

Control

Arpeggiator Arpeggiator External Sequencer Sequencer Memory Sequencer External Continuous Program Change
no N/A No N/A N/A bend/mod-lever no

Keyboard

Key Pressure Chord Memory External Control External Sustain Key Scaling Velocity Curves
HASH(0x3de1480) no no no routed to VCF no

Source

Name Signal Class Waveform Octave Range Amplitude Modulator Harmonics Modulator Pitch Modulator Wave Assign Modulator
VCO1 analog saw square pulse 4-16' no PWM:LFO LFO bend-lever portamento no
VCO2 analog same as VCO1 - no no LFO bend-lever portamento no
SUB analog square - no no no no
Noise analog noise - no no no no

Filter

Name Signal Class IC Resonant Shape Frequency Modulator Resonance Modulator Shape Modulator
HPF analog opamp no high pass no no no
VCF analog IR3109 yes low pass EG key LFO no no

Envelope

Name Level Rate Loop Polarity Trigger Level Modulator Rate Modulator
VCF-EG sustain attack decay release no yes key no no
VCA-EG sustain attack decay release no no key no no

LFO

Name Waveform Delay Polarity Sync Delay Modulator Level Modulator Rate Modulator
LFO saw:up saw:down square sine yes no no no mod-lever 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