Monophonic Analog Synthesizer

OUR PART #: MS20MINI Write the First Review.

Korg’s MS-20 monophonic synthesizer, first introduced in 1978, is still a coveted instrument to this day...
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Our Price: $459.99
List Price: $840.00
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Korg’s MS-20 monophonic synthesizer, first introduced in 1978, is still a coveted instrument to this day, thanks to its thick, robust sound, its powerful, iconic analog filter, and its versatile patching options. Over 300,000 people have enjoyed the distinct MS-20 sounds from the original, from Korg’s MS-20 plug-in synth, or the iMS-20 iPad app.

Today, the sounds of the MS-20 have been reborn in hardware, as the MS-20 Mini. The same engineers who developed the original MS-20 have perfectly reproduced its circuitry and fit into a body that’s been shrunk to 86% of the original size, yet retains the distinctive look of the original.

The MS-20 mini painstakingly replicates the original MS-20. A development team led by the original engineers themselves worked to recreate the original circuitry, and when it was necessary to substitute a part, these engineers made the decisions based on careful listening, in order to reproduce the original sound faithfully. In fact, the sound of the MS-20 mini has a somewhat bright and extreme quality to it because its sound is that of an original MS-20 in mint condition at the time it went on sale, before any of the components aged.

2VCO / 2VCF / 2VCA / 2EG / 1LFO structure
The MS-20 mini reproduces the distinctive synthesis of the MS-20; two oscillators with ring modulation, and envelope generators with hold and delay. The VCA maintains the basic design of the original, but it’s been modified to produce less noise than the original.

Self-oscillating high-pass/low-pass filters with distinctive distortion
One of the greatest characteristics of the MS-20 was its powerful filters, which provided resonance on both the high-pass and the low-pass. Maximizing the resonance would cause the filter to self-oscillate like an oscillator, producing a distinctive and dramatic tonal change that was acclaimed as inimitable, and was later used on the monotron and monotribe. The filter circuit was changed mid-way through the production lifecycle of the MS-20; the MS-20 mini uses the earlier filter, which was felt to be superior due to its more radical sound.

External signal processor (ESP) for processing an external signal
The ESP carries on the experimental spirit of MS-20; it allows you to use the pitch or volume of an external audio source to control the synthesizer. For example you can input an electric guitar and use the MS-20 mini as a guitar synthesizer, or input a mic and use it as a vocal synthesizer.

Extremely flexible patching system
The patching system provided to the right of the panel lets you create complex sounds by plugging-in cables to change the connections between the various units. The possibilities are limited only by the user's imagination; different combinations of the modulation input/output and trigger, sample and hold, and noise generator can produce an incredible variety of sounds. By patching according to the MS-20 flow chart that’s printed on the panel, even the beginner can start taking advantage of these possibilities right away.

Replicates every detail of the original
Even the package that contains the unit replicates the original as far as possible. Also included are the original MS-20 owner's manual and settings chart, explaining how to create sounds. Now you can experience the excitement of the MS20, just like it was during its original release in 1978.  To make it even more approachable, the MS-20 mini has been shrunk to 86% of the size of the original MS-20. In spite of its smaller size, meticulous care has been taken to accurately reproduce the knob design and the printing. The patch cables have been changed from 1/4" phone plugs to mini-plugs, and the newly-designed keyboard is also 86% of the original size.  The MS-20 mini provides a MIDI IN jack for receiving note messages, and a USB-MIDI connector that can transmit and receive note messages. You can even connect the MS20 mini to your computer and play it from a sequencer.

Korg MS20MINI Features:

  • Overseen by the engineers of the original MS-20, a complete replication of the original analog circuitry
    • 2VCO / 2VCA / 2VCF / 2EG / 1LFO structure
    • Self-oscillating high-pass/low-pass filters with distinctive distortion
    • External signal processor (ESP)
    • Extremely flexible patching system
  • Miniature MS-20 that's 86% of the original size
  • MIDI IN and USB connector
  • Replicates every detail of the original, down to the package binding andthe included manual

Korg MS20MINI Specifications:

Control Section:

  • Keyboard: C - C 37-notes (3 octaves), mini keyboard designed specifically for the MS-20 mini
  • Voltage Controlled Oscillator 1 (VCO 1):
    • Scale (32', 16', 8',4') (6 octaves, +cent, -cent)
    • Wave form (Triangle, Sawtooth, PW-Square, White Noise)(4 modes)
    • Pulse width adjust 1:1 - 1:infinity
  • Voltage Controlled Oscillator 2 (VCO 2):
    • Scale (16', 8', 4', 2') (6 octaves, +cent, -cent)
    • Wave form (Sawtooth, Square, Pulse, Ring modulator)(4 modes)
    • Pitch (± 1 octave)
  • VCO Master control: Master tune (± 100cent):
    • Portamento (max.10sec)
    • Frequency modulation intensity by MG/T.EXT (-5V -+5V)
    • Frequency modulation intensity by EG1/EXT (-5V - 0V)
  • VCO Mixer:
    • VCO 1 Level
    • VCO 2 Level
  • Voltage Controlled High Pass Filter (VCF HPF):
    • Cutoff frequency(50Hz - 15,000Hz)
    • Peak (flat - self OSC)
    • Cutoff frequency modulation intensity by MG/T.EXT (-5V - +5V)
    • Cutoff frequency modulation intensity by EG2/EXT (-5V - +5V)
  • Voltage Controlled Low Pass Filter (VCF LPF):
    • Cutoff frequency(50Hz - 15,000Hz)
    • Peak (flat - self OSC)
    • Cutoff frequency modulation intensity by MG/T.EXT (-5V - +5V)
    • Cutoff frequency modulation intensity by EG2/EXT (-5V - +5V)
  • Envelope Generator 1:
    • Delay time (10sec)
    • Attack time(10sec)
    • Release time (10sec)
  • Envelope Generator 2:
    • Hold time (20sec)
    • Attack time(10sec)
    • Decay time (10sec)
    • Sustain level (0V -5V)
    • Release time (10sec)
  • Modulation Generator (LFO):
    • Wave form (Positive Sawtooth -Triangle - Negative Sawtooth, Wide Pulse - Square - Narrow Pulse)
    • Frequency (0.1Hz - 20Hz)
  • Manual controller:
    • Control wheel (center click)
    • Momentary switch -->GND
  • Power switch and Volume:
    • Volume
  • Indicator: LED (KBD trigger, Modulation Generator rate, PowerON )

External Signal Processor

  • Control section:
    • Input signal level
    • Low cutfrequency (50Hz - 2,500Hz)
    • High cut frequency (100Hz -5,000Hz)
    • CV adjust
    • Threshold level
  • Input and Output:
    • Signal In
    • Amplifier Out
    • Band pass filter Out
    • CV Out (0 - +8.4V)
    • ENV Out (0 -+5V)
    • Trig Out (+5V-->GND)
  • Indicator (LED):
    • Peak indicator
    • Trigger indicator

Patch Panel

  • Keyboard:
    • Keyboard control voltage output (Exponential) (0 -+8V)
    • Keyboard trigger output (+5V-->GND)
    • VCO-1 +VCO-2 control voltage input (Linear response) (0 - +8V)
    • VCO-2 control voltage input (Linear response) (0 - +8V)
  • VCO:  VCO-1 + VCO-2 external frequency control input (OCT/V) (-5V - +5V)
  • VCF:
    • External signal input (3Vp-p max.)
    • External High pass filter cutoff frequency control input (2OCT/V) (-5V -+5V)
    • External Low pass filter cutoff frequency control input (2OCT/V) (-5V - +5V)
  • VCO + VCF:  Total external modulation input (T.EXT)(-5V - +5V)
  • VCA:  External initial gain control input (0 -+5V)
  • EG:
    • EG 1 envelope signal normal output (-5V - 0V)
    • EG1 envelope signal reverse output (+5V - 0V)
    • EG 1 + EG 2 triggerinput (-->GND)
    • EG 1 trigger input (-->GND)
    • EG 2 envelope signal reverse output (+5V - 0V)
  • MG:
    • Triangle output (Positive Sawtooth - Triangle - Negative Sawtooth) (5Vp-p)
    • Rectangle output (Wide Pulse - Square - Narrow Pulse)(0 - +5V)
  • Noise Generator:
    • Pink noise output (5Vp-p)
    • White noise output (5Vp-p)
  • Sample and Hold:
    • Clock trigger input (-->GND)
    • Sample signal input (5Vp-p max.)
    • S/H output (5Vp-p max.)
  • Modulation VCA:
    • Control voltage input (0 - +5V)
    • Signal input (-5V - +5V)
    • Signal output (-5V - +5V)
  • Manual controller:
    • Control wheel output(-5V<--0V-->+5V)
    • Momentary switch output (-->GND)
  • Signal out: Signal output (mono 1/8" mini phone jack, 2Vp-p output impedance 3.5k)
  • Head phones: Head phones output (Stereo 1/8" mini phone jack, 33 ? 48mW)
  • USB: Type B, USB-MIDI Input/Output
  • MIDI: MIDI Input
  • Power Consumption: 9W
  • Power Supply: DC9V
  • Dimensions (WxDxH): 19.41" x 10.12"x 8.19" (493 x 257 x 208 mm)
  • Weight: 10.58 lbs (4.8 kg)
  • Accessories: AC adaptor (9V/1.7A), Patch Cord x10

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