The Korg MS-20: The Control Panel Part 1 (HQ)

YouTube via AutomaticGainsay | Feb 26, 2011 |
custom white MS20
"Here is a higher-quality version of part one of the Korg MS-20 video on the control panel."

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NAMM 2013: Korg MS-20 Mini: The Legendary All-Analog MS-20, Reborn! Videos

Published on Jan 24, 2013 KorgUSAVideos·321 videos

"Join Korg Inc.'s own Fumio Mieda and Hiroaki Nishijima - the engineers who brought us the legendary MS-20 back in 1978 - as we take a look at the new MS-20 Mini! Both personally oversaw the design of the modern-day MS-20, which features the exact same true-analog signal path as the legendary original. The incredibly powerful dual filters with peak/resonance, CV functionality, external signal processing, and unique hands-on patching system are all here - with 5-pin and USB MIDI to boot -- and all at 86% of the original size.

For More Info on MS-20 Mini head over to http://www.korg.com/ms20mini.

Like Us - https://www.facebook.com/KORGusa
Follow Us - https://www.twitter.com/KorgUSA"

MS-20 is reborn. - KORG MS-20 mini -


KORG MS-20 mini イントロダクション・ムービー


And the Press Release:

"Korg Announces MS-20 mini

-Korg's classic MS-20 is recreated in mini size-

WINTER NAMM, ANAHEIM, CALIFORNIA, January 24th, 2013 - Korg's MS-20 monophonic synthesizer, first introduced in 1978, is still coveted to this day for its thick, robust sound, powerful, iconic analog filter, and versatile patching options. It has now been reborn as the new MS-20 mini. The same engineers who developed the original MS-20 have perfectly reproduced it in a body that's been shrunk to 86% of the original size, yet retains the distinctive look of the original.

The MS-20 Mini offers the same distinctive synthesis that made the original MS-20 popular: two oscillators with ring modulation, and envelope generators with delay and hold. The VCA (Voltage Controlled Amp) maintains the original basic design, but it's been modified to produce less noise. Particular attention has also been paid to delivering smooth parameter adjustments, which are a distinctive feature of analog synthesizers. Special care was also taken to completely reproduce the original specifications of the MS-20, to deliver the same powerful sound, from deep, growling basses to crisp, rounded leads.

One of the most well-known - and still most sought after - characteristics of the original MS-20 was its powerful filters, which provided both high-pass and low-pass with peak/resonance. Maximizing the peak/resonance would cause the filter to self-oscillate; producing a distinctive and dramatic tonal change that was acclaimed as inimitable, and was used many years later on Korg's 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.

The ESP (External Signal Processor) functionality carries on the experimental spirit of MS-20, allowing users to utilize the pitch or volume of an external audio source to control the synthesizer. For example, an electric guitar can be used as an input signal, and the MS-20 mini can be used as a guitar synthesizer, or the mic input can allow it to be used it as a vocal synthesizer.

The patching system enables the creation of complex sounds by allowing the rerouting of both modulation and audio (both the internal oscillators and external audio). 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 printed on the panel, musicians of all levels can take advantage of these possibilities right away.

To make it even more approachable, the MS-20 mini has been shrunk to 86% of the size of the original, with meticulous care 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 86% of the original size as well.

The MS-20 mini is equipped with a MIDI IN jack for receiving note messages, and a USB-MIDI connector that can transmit and receive note messages. Users can also connect the MS20 mini to a computer and play it from an external sequencer.

For added authenticity, the MS-20 mini packaging replicates much of the original. Also included are the original MS-20 owner's manual and settings chart.

The Korg MS-20 Mini will be available April 2013 for a U.S. Street price of $599.00 Additional product information is available at Korg.com."

Korg MS-20 Kit Semi Modular Synthesizer: Analog / CV Gate / Midi / USB

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"Build a real MS-20 with your own hands
Creating an instrument your own hands is the part of the true enjoyment of an analog synthesizer. The MS-20 Kit lets you obtain a real, full-sized MS-20 by assembling it yourself. It goes without saying that, just like the MS-20 mini released in January 2013, the engineers who developed the original MS-20 have overseen this project - ensuring that its historic sound is reproduced with complete fidelity. In addition, the MS-20 Kit provides the filters from both the early and late versions of this classic instrument and it even allows you to switch between them. Today, 36 years after this historic instrument was first unveiled in 1978, the MS-20 returns to its true origin.

A full-size MS-20 that you can assemble yourself
The MS-20 Kit is a kit that lets you obtain a real MS-20 by assembling the parts according to the directions in the owner's manual. Most of the steps are simply a matter of tightening screws or fitting parts together, so you don't need to know about soldering or electronic circuitry. Beyond any doubt, the analog sound generated by the MS-20 that you yourself completed will sound more valuable than that of any other synthesizer.

Unlike the MS-20 mini, the MS-20 Kit is a full-size unit with a standard-sized keyboard, and the plugs are also full sized 1/4" phone plugs.

Two types of filter are provided: both the early and later versions
The original MS-20 used different VCF circuits depending on the date of production. Units produced in the earlier period used a filter noted for its distinctive distortion and self-oscillation, while the filter used in later units was a low-noise design with a more mellow character. Amazingly, this new MS-20 Kit provides both filters. You can switch between the two by moving a jumper pin on the circuit board according to your taste or needs

Overseen by the engineers of the original MS-20; a complete replication of the original analog circuitry
Just like the MS-20 mini, development of the MS-20 Kit was led by the original engineers themselves, who spared no effort to perfectly replicate the circuitry of the original unit. When it was necessary to substitute a part, the engineers made the decision based on their own ears, ensuring that the exact sound of the original unit has been reproduced. In fact, the sound of the MS-20 kit 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 kit reproduces the distinctive synthesis of the MS-20; two oscillators with ring modulation, and envelope generators with hold and delay.

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 kit 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.

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KORG iMS20 for iPad Now Available - SoundCloud Support

user videos below
"KORG iMS-20 is an analog synth studio; a complete recreation of the Korg MS-20 analog synth, an analog sequencer, a drum machine, a mixer, and even Korg's Kaoss Pad technology. Plus, you can share your songs online via the SoundCloud network!

The regular price is US$ 32.99; a special introductory price of US$ 15.99 is being offered until January 31, 2011.

iMS-20 is a complete music production app for iPad. It consists of a complete recreation of the legendary Korg MS-20 analog synth with the patching capability, plus a 16-step analog sequencer based on the Korg SQ-10, a six-part drum machine which can create drum parts by simply tapping the buttons, and a seven-channel mixer with 14 types of effects.

iMS-20 is a complete music production app for iPad, consisting of a complete recreation of the legendary Korg MS-20 analog synth with patching capability, a 16-step analog sequencer based on Korg's SQ-10, a six-part drum machine with dedicated pads, and a seven-channel mixer with 14 types of effects. [repetitive desc on iTunes]

In addition, iMS-20 offers dual Kaoss Pads allowing you to generate music by simply stroking the pad and moving your fingers over it. Experiment to come up with wild musical phrase! And with access to the SoundCloud audio platform*, you can publish your songs, or collaborate on ideas with people anywhere in the world from within the app!

*You will need to register for a SoundCloud account in order to publish data on SoundCloud. A variety of choices are available, ranging from a free account that allows up to two hours of data to be uploaded to a paid account that allows unlimited time. For details, refer to the SoundCloud website: http://soundcloud.com (English only)

∗When using SoundCloud, you must observe SoundCloud Ltd.'s terms of use, such as the prohibition on uploading songs whose copyright is the property of a third party.

[Specifications]
Components:
- MS-20 monophonic synthesizer: 1 unit
- Analog sequencer: 1 unit
- 6-part drum machine: 1 unit
- Mixer: 1 unit
- Song/Pattern composer: 1 unit

MS-20 monophonic synthesizer:
- Analog modeling synthesizer (MS-20 modeled by “CMT” Component Modeling Technology)
- 2VCO / 2VCF / 1VCA / 2EG / Patch Panel
- Additional functions: Modulation Key/Tempo Sync
- Insert effect (selectable from 14 effect types as below)

Analog sequencer:
- 16-step analog sequencer
- Control notes, volume, pan, parameters, and voltages via knobs
- Configurable steps (1-16) and sequence mode (6 types)
- Trigger out per channel or step position

6-part drum machine:
- 6-part/16-step drum machine
- Create sounds by sampling a single note from a built-in MS-20
- Controllable notes, volume and pan by knobs
- Configurable steps (1-16) and sequence mode (6 types) per a part

Mixer:
- 7-channel mixer
- Double needle meter indicates VU level
- Master effect (selectable from 14 effect types as below)

Song/Pattern composer:
- Compose a song or select a pattern, built-in mixer
- 16 patterns and 256 bars per a song
- Tempo setting (20-300 BPM) and Swing function

Effect type:
- 14 types: Short Delay, BPM Sync Delay, Reverb 1, Reverb 2, Chorus/Flanger, Equalizer, Compressor, Tube Simulator (Valve Force), Low-Pass Filter, High-Pass Filter, Band-Pass Filter, Talking Modulator, Decimator, Grain Shifter

Controllers:
- Keyboard: Recording function, Variable width (22, 26, or 29 keys)
- Kaoss Pad: 2 units, Recording function
Performance pad: Key/Scale (31 types) settings
Parameter control pad: X-Y axis parameter settings

Other:
- Audio export function (Bouncing a song or pattern, and Real-time recording a performance: 16-bit/44.1 kHz stereo WAV format)
- Publish and share songs online with the SoundCloud audio platform
- Various template patterns by music genre are included
- Various template sounds by sound category are included

*KORG iMS-20 is a dedicated iPad app ( iOS 3.2 or later) and cannot be used with iPhone and iPod touch"





Korg iMS-20 demo

YouTube via phono1337 | November 09, 2010 "Korg iMS-20 more info at http://www.dinsync.info"


Update: new videos and audio:

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NAMM 2013: KingKORG Details via KORG.de

German | Googlish:

Some of the highlights below. Be sure to click the pics for the full size shots as always.  You'll find more at the links above.

"KingKORG | synthesizer

The king of the analog modeling synth - a terrific live performance

KingKORG is de r independent analog modeling synthesizer with a huge potential! KingKORG embodies the seamless continuation of the design philosophy of classic KORG analogsynths like the MS-20 and Mono / Poly, from which the Prophecy have originated Z1, MS2000, and RADIAS. This fascinating new instrument has the unique characteristics typical synthesizer and an arsenal of practical controls for a perfect sound design. Despite its impressive technology and synth beginners become familiar with KingKORG quickly. On stage, he offers not only his great sound, but also literally, with its magnificent champagne-gold finish that emphasizes its royal name - KingKORG.

Highlights

Full featured analog modeling synth with 61 keys - optimized for live performance
Powerful oscillators - understandable for beginners, fascinating for experts
Modeling Filters for the reproduction of classical instruments
3 effect sections (each with 6 types of effects) to the perfect design of the sound
Vacuum Tube Driver for brilliant overtones fat Distortion
New panel layout for intuitive operation
CV / GATE OUT jack mono tribe or to control a Korg MS-20 (mini)
Free Librarian software for program management to download"

"Powerful oscillators - understandable for beginners, fascinating for experts

In addition to a complex "3-oscillator x 2-timbre" technique to generate richer and more detailed sounds KingKORG features a newly developed XMT modeling sound engine. XMT (Xpanded Modeling Technology) is a proprietary Korg technology that allows easy operation in producing diverse sounds.

In conventional synthesizers, the individual oscillators while the sound creation only sequentially adjustable, the overall picture is hard to overlook. In contrast, offers KingKORG preset algorithms with various combinations of oscillators, which differ in type and number, and allow easy, fast creation of cool sounds.

The wide range of oscillator algorithms including not only the usual analogsynths sawtooth and square waves or noise generators, but also numerous PCM / DWGS algorithms that open up an entirely new field for a very custom sounds."

"Modeling Filters reproduce the sound of vintage instruments

Since the filter section on the characteristics of a synthesizer decides significantly, they found during the development of KingKORG special attention. The already large variety of analog modeling filter is significantly extended by the extremely flexible filtering of KingKORG.

In addition to the wide range of indispensable analog modeling filter types get realistic filter models to reproduce the analog monophonic lead and bass synths of the 70s, the New Wave typical polyphonic synths of the 80 and the filter of the classic Korg MS-20 analog synth.

Furthermore, can the setting of the filter resonance up to self increase - an existing analogsynths only real feature!"

"3 effect sections with 6 types of effect for a perfect make-up sound

KingKORG offers three effect sections with six types of effects: PRE FX with effects such as distortion and amp simulator FX MOD with classic effects such as phaser, chorus and tremolo, and REV / DELAY with spatial effects such as reverb and delay effects and different Plate. Each effect processor has it own dial to select the desired effect type. With the arranged underneath FX controls can precisely fine-tune the effect."

"Vacuum Tube Driver for brilliant overtones fat Distortion

Based on decades of experience in analog technology, a fully developed KORG analog vacuum tube driver circuit as a mastering effect for KingKORG. It produces the entire range between warm sonority and intense overdrive."

"Vocoding

The built-in vocoder uses the input of the Board held on microphone input for sound processing and brings the synth seems to speak.

His Formant Shift function causes dramatic sound modifications, while the Formant Hold function a vowel is "frozen", which can then play with the keyboard.

Thanks KingKORGs Doppeltimbre architecture can combine the vocoder even with a different timbre and use it as additional sound or modulation source.

Virtual Patch function

With many classic synthesizers (such as the MS-20) could configure the signal flow with patch cables to physically connect one element to another. KingKORG forms this function by using an intuitive virtual patch system. Over six Virtual Patch assignments per timbre can be joint control signals such as EG, LFO, or virtual joystick movement with sound parameters like pitch or cutoff and modulate these creative."

"Step Arpeggiator function

The Step Arpeggiator automatically generated from a sustained chord a tone sequence (arpeggio). You can choose among six Arpeggio and set duration, interval and on / off status of each Steps to arpeggios exactly to your own performance.

New panel layout for intuitive operation

The newly designed control panel is divided into logical blocks that direct the attention to the things that are for the processing of sounds important. Although KingKORG reflects the signal flow of a analogsynths in its construction, to its control panel is the most modern technology. For example, the oscillator section shows on its own display the name of the currently selected algorithm.

By turning the selector dial to appear adjacent to it are descriptive names, and by pressing the wheel to jump to the beginning of categories such as ANALOG or DWGS. The knobs are the most effective and most important parameters assigned to each oscillator and provide access to the unique features of an analog synthesizer sound design --- by turning knob. Also for each of the three effects, a separate controller is available to easily experiment with different effect settings and test their effect on the sound. A self-luminous organic EL display (Organic Light-Emitting Diode) provides on dimly lit stages for excellent readability."

"On the CV / GATE OUT jack allows an analog signal for controlling a mono tribe or KORG MS-20 output. With the included cable you can then eg play the mono tribe on KingKORG keyboard!"

This one in via Robert Karasek

Korg MS-20m Monophonic Synthesizer Kit and SQ-1 Step Sequencer Video & MS-20m Details

Uploaded on Jan 15, 2015 Korg

"The new MS-20m and SQ-1 open a whole world of analog experimentation. Connect, sync, and sequence all your gear with the flexible SQ-1 Step Sequencer, and take the famous MS-20 sound to new levels with the FM and sync features of the tabletop MS-20m"

Note the SQ-1 comes included with the MS-20m kit. The MS-20m has a selectable filter switch on the front panel while the original MS-20 kit had to be set internally. There are number of additional improvements outlined directly below. [Details on the SQ-1 just posted here]. Fun little bit of trivia is you can see SN 000001 on the back image below. Often there is no serial number in promo shots. Thought it was kind of neat and adds to the history of whomever this particular unit ends up with.  Also note it's lower case "m".

First, the enhancements over the original:

"Carrying on the distinctive synthesis of the MS-20, the MS-20M features additional improvements in both looks and functionality. Extending to detailed aspects of the design, the sound-creating possibilities have been dramatically boosted, making this sound module even more attractive and raising it to an even higher state of completion.

SYNC ON/OFF switch allows oscillator sync
Oscillator sync forcibly synchronizes the phase of VCO1 to the phase of VCO2, producing a powerful sound with complex overtones.

FM ON/OFF switch allows frequency modulation
The VCO1 waveform can be used to frequency-modulate the VCO2 waveform (FM or cross modulation), creating vibrato effects or extreme metallic sounds.

FILTER TYPE switch lets you select two types of filter
The original MS-20 used two different VCF circuits depending on the date of production, and now you can choose either of these with a single switch. The earlier model (REV.1) has an aggressive character with distinctive distortion and self-oscillation, while the later model (REV.2) has minimal noise and a sweet, mellow sound.

PWM IN jack allows pulse width modulation
The PWM provided on the MS-10 of the past is now possible on the MS-20. By cyclically modulating the pulse width of the VCO1 square wave, you can obtain a distinctively fat sound.

EG2 NORMAL OUT jack expands your sound-creating potential
In addition to the previous EG2 REV OUT, we've provided a normal EG2 OUT that varies in the range of 0V--+5V.

TRIG SW button lets you conveniently audition the sound
Even on this keyboardless unit, the trigger switch lets you smoothly audition the sound while you edit the parameters.

Numerous jacks have been added to the MS-20M, letting you connect it with any type of device.

All CV/GATE specifications are supported: Hz/V and V/Oct, S-Trig and V-Trig
From the time when it was originally produced, the CV standard used by the MS-20 was not the commonly used V/Oct standard, but rather the Hz/V standard that provided superior pitch stability. However, like the MS-50 of that time, the MS-20M Kit provides CV IN jacks for both the Hz/V standard and the V/Oct standard.

For the TRIG IN jack that receives gate signals, jacks are provided not only for the S-Trig standard as on the original MS-20, but also for the widely used V-Trig standard. The MS-20M Kit supports any sequencer or controller that's equipped with CV/GATE output.

Three JUNCTION jacks
Three sets of the junction jacks once provided by the MS-50 are also provided. Output signals from the SQ-1 step sequencer or similar device can be converted from a mini-phone plug to a 1/4" phone plug, or those signals can be distributed to multiple destinations for a variety of possibilities.

MIDI IN connector and USB connector
There's a MIDI IN connector that can receive note messages, and a USB-MIDI connector that can transmit and receive note messages. You can perform using a taktile or other MIDI keyboard, or perform sequences that you've recorded on your DAW.

And the general description for the archives:

"The evolution of the MS-20, delivering even more powerful synthesis.
A module that you assemble, with a step sequencer included.
The classic MS-20 analog synthesizer that appeared in 1978 has been reborn as a perfect reproduction of the original circuit, first in 2013 as the mini-sized MS-20 mini, and now in 2014 as the MS-20 Kit that you can assemble yourself.

The MS-20 Mini and the Kit were designed by the engineers who developed the original MS-20. At its introduction, the designers of the MS-20 wanted to create an interesting product quickly; the result was an enormous hit, but the designers felt there were actually a few things left undone. Now, after 37 years, the user-assembled MS-20M Kit has been completed.

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Musikmesse: KORG Monotron Analogue Ribbon Synthesizer

"Analog synthesis returns, in the legendary KORG tradition
Korg is no newcomer to the joys of analog synthesis. Back in the 1970s, our astounding fully polyphonic PS-3000 Series and our affordable semi modular MS Series set the bar for creative musicians around the globe. Surely one of the most popular of Korg's analog synthesizers was the coveted MS-20, famous for its dynamic sound creation capabilities and its fat, snarly, expressive filter. Kept popular by dance and electronic artists, this legendary MS-20 filter came back to life using the Component Modeling Technology in Korg's Legacy software collections. Now you can experience the glorious, evocative MS-20 filter along with true analog synthesis in Korg’s new monotron Analogue Ribbon Synthesizer!!

Analog on the go!
Powered by two alkaline AAA batteries, the compact monotron can be held in one hand. Although small enough to easily carry with you, the amazing monotron is packed with KORG's legendary analog technology, generating thick and powerful sounds. Concentrating on the most important sound parameters, the controls have been streamlined as much as possible. The panel contains only five knobs and one switch. With this level of simplicity, now anyone can easily enjoy the world of analog synthesizers.

Product Highlights:

* Full-fledged, true analog synthesizer: VCO, VCF, LFO

* Inspiring, easy-to-play ribbon keyboard

* Intuitive, fun-to-tweak controls

* Features the same classic analog filter found in the legendary Korg MS-10 & MS-20

* Filter any external source using the audio input jack

* LFO can modulate either pitch of filter cutoff

* LFO Rate knob features cool LED visual indicator.

* Battery operation and palmtop size equals true portability

* Internal speaker/headphone jack lets you enjoy the sound anywhere – alone or with friends!

Ribbon controller keyboard offers easy expression
Borrowing the enjoyment of performing with a simple touch from Korg's wildly popular KAOSS products, the monotron's ribbon controller keyboard takes this ease of use even farther. Simple finger gestures can produce expressive effects such as vibrato and glide. Used in a band, you can expand your possibilities by harmonizing with another instrument – or taking center stage for a monotron solo!

1VCO, 1VCF, 1LFO – Modular synthesis building blocks
The monotron's circuit is radically simple: one voltage-controlled oscillator, one voltage-controlled filter, and one low frequency oscillator. Since each knob directly applies a specific change to the sound, the process of sound creation is intuitive, and instantly understandable. Simple is best. Gone are the deep lists of presets and parameters typical of today's synthesizers. Instead, the monotron encourages exploration and experimentation. The monotron provides the joy of sonic creativity that's at the heart of analog synthesis, making it an ideal choice for someone who is new to synthesizers, or for musicians who wants to expand their sonic palette.

The famous Korg filter
The monotron uses the same highly acclaimed VCF circuit as KORG's classic MS-10 and MS-20 semi modular synthesizers. Originally released over 30 years ago, these instruments are still coveted today for their aggressive, dynamic filters. The VCF Cutoff knob sets the frequency or tone of the filter; the VCF Peak knob adds emphasis. A powerful filter is an essential aspect of any analog synthesizer, applying dramatic tonal changes to the sound, and projecting an intense personality that will stand out in any live performance.

Semi modular satisfaction
Just as on the original MS-20, the monotron's filter can be "patched into," allowing any external audio source to be processed by the monotron's filter. The input jack (AUX input) built into the monotron's compact body inserts the AUX input into the signal path right before the VCF. This provides a great way to connect a KAOSSILATOR, a keyboard, a guitar, a digital audio player or even an un-mixed track to the monotron and enjoy tone-bending filter effects.

Versatile LFO provides audio – and visual – excitement!
You can switch the LFO to control either the oscillator pitch or the filter cutoff frequency. Both LFO Rate and LFO Intensity knobs are provided. As you turn the LFO Rate knob – featuring an embedded LED – the speed of the modulation effect and the speed of the blinking LED will change in tandem. Turning this knob can add another level of impact to your live performances.

Listen anywhere – alone or with friends
A miniature speaker is built into the monotron. Along with the battery operation and compact size, this feature allows you to enjoy the monotron anywhere, at any time. The ultimate in compactness, this system brings you new possibilities for performance. There's also a headphone output that you can use when creating sounds at home, for recording, or for connecting to an amplifier or PA system."

http://www.korg.com/monotron


YouTube via Moogulator. previously posted

Update:

Korg Monotron

YouTube via BorisAlexander2008. In via Russ.

Update2: you can find two audio demos on the Japanese KORG Monotron site.

KORG MS20 Painted White

images via this auction
This is the MS20 from this video and this video.

"For auction is one Korg MS-20 semi-modular two oscillator analog monophonic synthesizer with patch cables, power converter, and 4 channel Rolls passive mixer.

The MS-20 has diverse functionality even before you start altering the signal path with the patch cables. It is a two oscillator synthesizer with multiple waveforms including ring modulator, noise, triangle, saw, square, and adjustable width pulse. It features an osc mixer, portamento, and two types of tuning. Multiple forms of pitch modulation are included. The synthesizer has a resonant 12dB per octave low pass filter and a resonant 12 dB per octave high pass filter. Both filters have their own LFO and ENV modulation. The LFO (or modulation generator) has control for waveshape and frequency. Two envelopes are included with delay and hold.

The patch panel allows for more modulation possibilities and more inputs and outputs. It also contains a Sample and Hold module, an extra VCA, positive and negative envelopes, mod gen outputs, modulation inputs, and voltage and trigger inputs and outputs.

The MS-20 features an external signal processor which allows you to control the synthesizer with any audio input. This section allows for pitch to voltage conversion (allowing the pitch of the input to control the pitch of the MS-20), conversion of amplitude to envelope, conversion of peak to trigger, and other functions which allow the instrument to be played controlled by audio input... even your voice!

This particular MS-20 has seen some use. There is wear apparent upon it. Someone took the liberty of painting the back, sides, and bottom with what looks to be something like housepaint. There are no trim covers. The on/off pot could benefit from a pot nut!

Despite these alterations and minor shortcomings, this MS-20 is fully functional, and sounds great. All pots, jacks, lights, wheel, and button are fully functional.

The auction includes a Rolls MX41 passive mixer, which can be used to mix and adjust control voltages in ways that the MS-20 alone cannot provide. Use of this mixer opens a lot of possibility and variety in the sound of the MS-20! (see patch idea in picture below)

Also included is 10 patch cables for use with the MS-20 am MX41.

This MS-20 has European voltage, but a transformer for use in the United States is included!"

Ultimate Synth Selection for NAUTILUS

Playlist:
Ultimate Synth Selection - KORG NAUTILUS

The Ultimate Synth Selection utilises the Set List feature in NAUTILUS and gives the user the ability to search for sounds from legacy instruments through to the world-class sound engines of the NAUTILUS.

Imagine walking into a room containing an MS20, a Polysix, WAVESTATION, M1, TRITON, Concert pianos, CX-3 drawbar organs, Electric Pianos with an array of FX pedals, supercharged FM synths and more…

The Ultimate Synth Selection lets you do that within the NAUTILUS by giving the user 11 custom setlists created by KORG UK. Full details at https://www.korg.com/uk/news/2021/090...

Ultimate Synth Selection for NAUTILUS - SGX-2

The SGX-2 Premium Piano sound engine offers three distinctive pianos - the rich German D piano, a Japanese upright model and a small Japanese C grand. Each uses superb, un-looped stereo samples, with 12 velocity levels. Thoughtful attention to detail preserves the realism and warmth of the piano sound, even to the extent of sampling and reproducing the sounds of the body resonances and the mechanical key, damper pedal noises, string resonance, varied microphone placements and even prepared piano samples.

Ultimate Synth Selection for NAUTILUS - EP-1

Our EP-1 sound engine is dedicated to faithfully recreating six of the most popular classic electric pianos which provide realistic simulations of the period amp, cabinet, speaker and even the hard-to-find vintage effects that gave the original instruments their distinctive sound. The MDS modelling technology eliminates the transitions between velocity-switched samples and provides the user with unique control over the tines, reeds and noise elements.

Ultimate Synth Selection for NAUTILUS - CX-3

The original KORG CX-3 combo organ went on sale in 1980. The CX-3 engine precisely models this classic tonewheel instrument. Proprietary KORG technology has been used to perfectly reproduce the vacuum tube amp and effects, such as Vibrato/Chorus and the must-have rotary speaker - even the instability, fold-back, leakage and noise of the tonewheels have been obsessively analysed to recreate this much sought-after classic organ.

Ultimate Synth Selection for NAUTILUS - MS-20EX

Debuting in 1978, the MS-20 unified a 37-note keyboard with a vertically oriented control panel. It had a thick and solid sound, aggressive filters and patching that opened up limitless potential for creating sounds. Using KORG's CMT (Component Modeling Technology), the MS-20EX faithfully reproduces the MS-20, whilst dramatically expanding its patch panel functionality. Its signature filters provide a unique sound, a great contrast to the AL-1 and PolysixEX.

Ultimate Synth Selection for NAUTILUS - PolysixEX

The original Polysix from 1981 offered six-voice polyphony, program memory and a surprisingly competitive price tag. With its self-oscillating four-pole filter, smooth analogue oscillator and sub-oscillator, plus a lush Chorus/Ensemble effect, the PolysixEX extends the abilities of the original in many creative ways, The Polysix arpeggiator is included and you can modulate every control on the front panel to make new sounds that were impossible on the original keyboard.

Ultimate Synth Selection for NAUTILUS - WAVESTATION

The WAVESTATION synthesizer appeared in 1990 with an advanced vector synthesis system that combined and shifted between multiple complex waveforms. Using the HD-1 Engine in the NAUTILUS, KORG have included most of the original wave sequences, as well as a full wave sequence edit mode. The patterns can also be manipulated with the on-screen vector joystick, just like on the original!

Ultimate Synth Selection for NAUTILUS - TRITON

The KORG TRITON series of workstations was first released in 1999. Countless top musicians and producers from around the world loved the newly developed expressive PCM sounds that helped shape the sound of the 2000s in the studio and on stage. This collection of 128 original TRITON programs uses the HD-1 engine to faithfully recreate the HI (Hyper Integrated) synthesis system that was at the core of the legendary TRITON series.

Ultimate Synth Selection for NAUTILUS - MOD-7

Combine Variable Phase Modulation (VPM), wave-shaping, ring modulation, samples and subtractive synthesis, plus a modular patch-panel system and you end up with the MOD-7. Exceptionally versatile, it offers everything from classic FM keyboards, bells and basses (including the ability to import sounds from vintage DX synths), to rhythmic soundscapes and sparkling, epic pads.

Ultimate Synth Selection for NAUTILUS - AL-1

The AL-1 is the same premium feature-packed analogue modelling sound engine that was first featured on the KORG OASYS, the Open Architecture Synthesis Studio back in 2005. Its patented ultra-low-aliasing oscillators smoothly recreate all the power and glory of true analogue synthesis-without the artifacts that can plague lesser instruments.

Ultimate Synth Selection for NAUTILUS - STR-1

Based on the physical modelling DNA that KORG developed in products such as the WAVEDRUM, Prophecy and Z1, this struck/plucked-string physical modelling sound engine takes advantage of cutting-edge technology. The STR-1 engine is packed full of highly playable sounds, whose tone responds to your touch in ways that are difficult for a PCM sound engine to replicate, including acoustic and electric guitars, harpsichords, clavinets, harps, bells and ethnic instruments.

Custom Racked Korg MS-20 MINI Synthesizer SN 013269

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"This is a customized Korg MS-20 MINI Synthesizer.

2 years ago I traded for this Korg and right away decided that despite it being like new, I hated the keyboard and the control panel graphics were so dimly printed that I couldn't read it in the dimmed lights of the studio. What to do?

Well, I ripped the keyboard and end cheeks out and threw them away. Then I built a pretty Red Oak box for it to live in and bought a brightly colored overlay for the control panel. It is now an attractive, great little desktop midi synth sans keyboard and I have no place to put it in my rig. So it needs a new home.

Please note that the patch bay is missing most of the plastic little fake hex nuts around the jacks. They are flimsy, tend to fall out, get lost or stepped on, and are purely cosmetic imitations of the 1/4" metal hex nuts that the old MS-20 had. I broke a couple cleaning the synth and so I just got rid of them.

So. If you want that great MS-20 sound with an improved appearance and without the crappy keyboard Korg slapped on it, this is your baby."

Panel overly by oversynth.com.

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Synth Basics Korg MS-20 VCA (Vactrol)

YouTube via djthomaswhite | October 24, 2010

"Bonus VCA from the patch section of the Korg MS-20. This is not the main VCA in the synth voice, rather it is a second VCA intended for use in patching sounds. Honestly, it's a crudely simple Vactrol based VCA that has audio bleed through a bit, like Lopass Gates (LPG's). The bleed through is not that bad, but it is noticeable for sure. However, Vactrol sound is warm and has a nice smooth decay. In other words, you cannot get this VCA to end abruptly. It always has the decay of the Vactrol. Enjoy the video!"

Synth Basics Korg MS-20 LFO

djthomaswhite | October 24, 2010

"NOTE: Sorry for the dryer buzzer towards the end of the clip. Wife, laundry, grumble.

Here is a demo of the modulation section of the Korg MS-20. Simple, but very effective. This is the internal LFO from the synth section, but accessed from the patch panel that makes the MS-20 so famous for being flexible and fun to own.

Basic shape control from saw to triangle to ramp on the one output and trigger length pulse to 50/50 cycle square wave to full wave minus small trigger pulses on the other. Frequency control and that's about it."

KORG KRONOS Details

via Hispasonic, translated to Googlish from Spanish:

"We have the first data and images of Kronos, the new Korg workstation. The Japanese brand has pulled the house out the window, bringing to market a synth with more than 12 GB SSD hard disk samples, 9 synthesis engines together, 16 units of effects and KARMA technology.

Features in detail

There are 9 synthesis engines on a single workstation, available in 61, 76 and 88 keys. The engines are:

* SGX-1 Premium Piano: German piano with more than 4 GB in samples. 8 layers and the choice of opening angle of the tail of the piano.
* EP-1 MDS Electric Piano, electric pianos (with sound "signature" by George Duke, Herbie Hancock Rodan Rudess or others)
* CX-3 Organ Tonewheel: integrating technology famed CX-3 in the Kronos. Drawbars controllable from its faders. Leslie Posilibidad to adjust the joystick, from speed to the position you just rotate.
* MS20-EX Legacy Analog Collection: emulation of vintage Korg MS20 synth.
-EX * Polysix Legacy Analog Collection: Polysix emulation.
* AL-1 Analog Synthesizer
* NOD-7 Waveshaping VPM Synthesizer
* STR-1 Plucked String Synthesizer: a new generation of modeling. You can choose from the material of the rope, until the tension, the execution (if pick, rub with your finger ...)
* HD-1 High Definition Synthesizer: A portion of all types of samples.

Account with a set of 16 "sets" may be, from Programs, to vans, to sequences. What makes the live performance much easier and full of possibilities. One of the most exciting new features is that you can move from one set to another without interruption of sound (so if you keep notes of the previous set, still playing).

It eliminates the concept appears rompler and integration / provision of more than 12 GB of content hosted on a hard disk SSD.

Has integrated USB connection to your computer, not just save / edit, but also as a USB interface with 2 inputs and 2 outputs.

Section 16 effects available. 9-band equalizer general. Flexible Routing. Mastering tools. 16-track sequencer."



Update:

Korg KRONOS Music Workstation- Official Product Introduction video added below.

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KORG MS-20mini Videos

KORG MS-20mini EG2 behavior
Published on Mar 23, 2013 AudioCentralMagazine·122 videos

"The KORG MS-20 EG2 acts in a way fairly different from standard: while is a "normal" ADSR on VCA, his Sustain pot works as an inverted offset for the EG output hardwired to VCFs. So, when you turn Sustain clockwise, you'll lower full voltage for EG output (the Cutoff will goes dooooown), when you turn Sustain counterclockwise, you'll raise full voltage for EG output (the Cutoff will goes up). Due to the dual EG 2 destination (VCA and VCF) you'll not be able to hear the effect with enough clarity; so, is mandatory to connect EG1 on VCA gain and leave EG2 on filter control. Weird, but effective."

KORG MS20 Mini on ZZounds
KORG MS20s on eBay

Update:

KORG MS-20mini Control Panel Testing
Published on Mar 24, 2013

"KORG MS-20mini is a nasty, pretty, wicked analog monophonic synthesizer with all the strength of the vintage model, but with an higher output level (and a little more hiss in background) and a smaller keyboard."


KORG MS-20mini The Self Triggering Patch
Published on Mar 24, 2013

"The KORG MS-20mini can be set in a self triggering condition by patching the square/pulse MG out to ESP section and, from ESP, back to EG 1&2 Trig In. On this way, you can fiddle with front panel controls while the machine is repeating EGs on and on. For pure fun, a little bit of pink noise is processed with S&H for FMing both VCOs."

KORG Introduces the KingKORG NEO!

video uploads by Korg

"KingKORG NEO packs the power from the legendary virtual analog synth KingKORG into a compact 37-full size key synth, with new sounds, a 16-band vocoder, effects, and virtual patching.

At your fingertips is deep sonic exploration with the intuitive front panel equipped with dedicated knobs and screens, 3 oscillators with 138 different oscillators types to choose from, and 18 classic synth filters, including iconic models such as MS-20, TB303, SEM, Minimoog, and Prophet 5, faithfully recreated through KORG's advanced XMT engine."

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New Korg modwave - an edgy, expansive, and easy to use wavetable synthesizer based on the DW-8000

Korg

"In 1985, Korg's DW-8000 combined digital wavetables with rich analog filters to give users sounds which were impossible to create with analog oscillators. It's still a cult favorite today.

modwave builds upon the DW legacy with incredibly deep wavetable oscillators, gorgeous filters, first-ever Kaoss Physics-based modulation, unmatched polyphony, comprehensive pattern sequencing, and immediately satisfying hands-on control to deliver unique, powerful, and easily customizable sounds and phrases."

KORG · modwave Demo Sounds

Update: pics and details via KORG:

"Synthesis powerhouse with distinctive wavetable timbres, Kaoss Physics, and Motion Sequencing 2.0.

In 1985, Korg's DW-8000 combined digital wavetables with rich analog filters to give users sounds which were impossible to create with analog oscillators. It's still a cult favorite today.

modwave builds on the DW legacy and transforms it into a modern monster synth, featuring incredibly deep wavetable oscillators, gorgeous filters, wildly flexible modulation, unmatched polyphony, comprehensive pattern sequencing, and immediately satisfying hands-on control to deliver unique, powerful, and easily customizable sounds and phrases.

modwave also introduces two unique new tools for creating dynamic motion: Kaoss Physics and Motion Sequencing 2.0. Kaoss Physics combines an x/y Kaoss pad with modulatable game physics to create a responsive, interactive controller that is—besides being powerful— a lot of fun to explore. Motion Sequencing 2.0 brings the organic, continuously evolving patterns of the wavestate's Wave Sequencing 2.0 into the world of motion sequencing, including multiple lanes and real-time recording to help you create complex and evolving phrases that other step sequeners cannot.

Like Wave Sequencing 2.0 (wavestate) and altered FM (opsix), modwave’s evolved wavetable synthesis delivers its own brand of completely unique sounds and a knob-per-function layout that makes customizing those sounds fast and easy. To start, there are hundreds of preset sounds empowered by this new architecture, organized by front-panel category buttons, and all instantly customizable via the four Modulation Knobs. modwave's distinctive wavetable timbres start with aggressive basses & leads, and lush ambient pads which will add a new dimension to your tracks. But that is just the start. Those who want to dig deeper will find an endless source of discovery; you'll be finding new things in this synth for a long, long time because of the unique synth architecture. Once you have started finding new sounds - aave as many as you like; there's room for thousands more."

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New G-Storm Electro KVP MS-20 to Euro Pitch CV + Gate Voltage Processor Demo

Published on Oct 3, 2019 gstormelectro

Available exclusively here

Audio and Video by G-Storm Electro c. 2019

Today I am introducing my new module - the KVP.
KVP is a pitch and gate CV processor that makes the MS-20 compatable w/ Eurorack (v/oct).
It works for the vintage MS-20, the MS-20 Mini reissue as well as the Behringer K-2.
And any manufacturer synth using the Hz/v standard.

Percussion: Basimilus Iteritas Alter
Sequencing: Arturia Beatstep Pro
Delay: Timefactor
Reverb: Big Sky

Recorded direct to Tascam DR-05.

---

Module description:

So you want to control your vintage MS-20 / MS-20 Mini / Behringer K-2 (and more!) from Euro modules.
But when you do, it sounds weird – the pitch is wayyy not right.
And the gate triggers… forget-about-it. KVP can help with that.

KVP can take Euro pitch voltages (v/oct), and process them to standards used by Korg.
Pretty much any manufacturer that uses the Hz/v standard.
It can also do the other way around so you can control your v/oct synths and Euro modules pitch from the MS-20.
Dialing in the frequency and tracking width is a breeze using multi-turn trim pots accessible from the front panel.
KVP will generate about 3 octaves of tracking (C1 to C4) - same as the MS-20 keybed.

KVP also has 2 processors for handling gate signals as well.
Slide the TYPE switch to the right (convert) and it can convert Korg to Euro gates or the other way around.
Slide the type switch to the left (no conversion) and the same gate that goes in is what comes out.

Korg MS-20 Retro Expansion by Yew Tree Magic's Martin Walker

This one in via Martin Walker of Sound on Sound, who brought us the Yew Tree Magic's Steampunk Shruthi Sound Designer Edition.

"With additional top-mounted panel controls and handsome cherry hardwood side panels, the Retro Expansion is a heavily modded version of the Korg MS-20 Mini by Martin Walker that includes the following additional features:

1. MULTI-OUTPUTS: separate TRI, SAW and PULSE output sockets, all available simultaneously, plus a separate output for OSC2.

2. PWM: an additional input for OSC1 variable pulse width modulation, using the existing pulse width knob to control PWM level.

3. SYNC: An OSC2 Sync toggle switch, to lock it with OSC1 for those screaming lead sync FX.

4. FM: An FM input added to OSC2 with its own rotary level control, so it could be modulated at audio rates by OSC1 among other options.

5. VCO MIXER: expansion for the existing mixer section, adding two extra input sockets, each with its own level control knob.

6. DIODE RING MOD: a more traditional transformer/schottky diode ring modulator circuit to achieve far more mellow ring mod options than the integral (XOR) option.

7. Final casework mods include a new top-mounting panel for all the new controls, a 1/4-inch jack output, and cherry hardwood side panels from Dolmage Designs.

If you're interested in adding any or all of these Retro Expansion mods to your own MS-20 Mini, all details of the circuit changes and more photos are available at www.yewtreemagic.co.uk. They should also work on the original MS-20 and more recent kit versions."

Introducing the Nodular Desktop Synthesizer - Two Sided Analog Monophonic Semi-Modular Synthesizer

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

Update: the maker/brand name for this synth is ndlr.synths. I created a new channel label for them. We have a new synthesizer manufacturer in town.  See second "Update" at the bottom of this post for additional notes on the design.

via the auction:
"Up for sale: one monophonic analog synthesizer. I've been making analog synthesizers for about 15 years now, but this is the first I am offering up for sale to the 'general public'. I am hoping to make a business out of selling this particular model, and you could be my very first customer.

The pictures show the same unit that is up for sale. The cabinet is made from 3/4" natural cherry boards, except for the base, which is made of 3/4" MDF. Both instrument panels are made of 1/8" thick anodized aluminum. The panels have been mechanically engraved and the engravings filled with chemically hardened black enamel paint. The whole unit measures about 18" wide by 18" deep by 12" tall. It weighs about 40 pounds. This is a very well made unit, with sturdy instrument panels that'll last a lifetime.

This synthesizer has its own +15/+10/GND/-10/-15 volt power supply and will only run on 120VAC 60Hz. It consumes about 45 watts of power at full bore.

All the modules in this synthesizer have been designed to work together seamlessly, and all use the same standards: 1 volt per octave, 10 volt peak-to-peak signal voltages, and 5 volt peak-to-peak gate, trigger, and control voltages. All patches are made among the modules via banana jacks. And a few different ways of interfacing to external modules or instruments are offered via 1/4" phone jacks.

A description of the different modules follows:

(1) ring modulator

(1) white and pink noise and random voltage source

(1) sample/track & hold

(1) voltage comparator

(2) low frequency oscillators (LFOs):

(1) headphone amplifier

Both offer voltage controlled frequency, variable offset and symmetry, and sinusoidal, triangular, and pulse wave outputs. By adjusting the speed knob, the frequency can be changed from about 20Hz down to really, really, slow. This range can be extended through voltage control.

(3) voltage controlled oscillators (VCOs):

All three offer 1 volt per octave frequency control, voltage controlled pulse width modulation, ac-coupled linear frequency control, hard sync, and sine, triangle, sawtooth, and pulse wave outputs. They'll track to within .2% over at least 8 octaves with basically negligible temperature drift once the enclosure is warmed up. And they'll operate from below audio to above audio frequencies.

In addition, the first VCO offers a frequency range switch and fine tuning.

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Meet the New KORG volca modular - Details & Demos

Published on Jan 14, 2019 Korg

It's real. Looks like a mini Buchla Music Easel with the red on blue touch panel "keys".

Updates: Reverb video, audio demos, hi-res pics & additional details added below.

"KORG volca modular is a semi-modular analog synthesizer in the KORG volca format that makes modular synthesis more accessible and understandable than ever before. Featuring 50 patch points for using the 20 included patch cables to connect the eight onboard modules in any way imaginable, volca modular was created with 'West Coast Style' synthesis in mind, to offer a unique sound and design that deviates from traditional synthesis norms."

Korg Volca Modular - Demo with Nick Kwas

Published on Jan 14, 2019 Kraft Music

"Find exclusive Korg Volca Modular BUNDLES at Kraft Music.

Nick Kwas Demos and jams out on the Korg Volca Modular at Kraft Music.

The Korg Volca Modular is a semi-modular analog synthesizer with eight independent internally-connected modules, 50 patch points, and digital effects. Although focused on the complex and experimental sounds of the West Coast school of modular synthesis, the Volca Modular is equipped with the familiar 16-step Volca sequencer with parameter automation capabilities, as well as flexible scale and key settings. Sync and CV in jacks allow for connection to other Volca units, select Korg synths and sequencers, and modular systems. Like other Volcas, the Volca Modular features a built-in speaker and battery operation.

Get more for your money with an exclusive Korg Volca Modular bundle from Kraft Music. These package deals include the accessories you'll need to get the most out of your new micro modular synth, all for one low price. If you have any questions, please give us a call. Our knowledgeable sales advisors will be happy to assist in choosing the bundle that's right for you!"

Korg Volca Modular - Clock Divider

Published on Jan 14, 2019 Rishabh Rajan

"Tutorial on creating a multi-voice pattern using the clock divider."

Korg Volca Modular - Step Sequencer

Published on Jan 14, 2019 Rishabh Rajan

"A tutorial on some of the functionality of the step sequencer on the Korg Volca Modular."

Korg Volca Modular Micro Modular Synthesizer | Reverb Demo Video

Published on Jan 14, 2019 Reverb

"The synth masters at Korg just announced the Volca Modular, Minilogue XD, and Volca Drum. Starting with the Volca Modular micro modular synth, check out this video demo (as well as those linked below) to learn more about the features in this trio of new offerings from the dream team that created so many of the top-selling synths on Reverb in the past couple years.
Read More on Reverb"

"An analog synth composed of modules

Eight modules

The volca modular is a semi-modular synthesizer consisting of independent analog synth modules, digital effects, and a sequencer. Each of the modules has been carefully selected for its stand-alone completeness. The modules are internally connected so that sound can be produced even before connecting the included pin cables, and the routing is shown by white lines on the panel. Module connections via a pin cable take priority over the internal connections, bypassing them.

SOURCE：

This consists of a triangle VCO carrier and a modulator. The complex overtones generated by FM modulation are sent through a wave folder circuit to add additional overtones, producing a distinctive sound. This module is important in determining the basic character of the sound of volca modular.

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Korg Vocoder VC-10

SN 160650 via this auction

"The Original, and still champion, Vocoder from Korg. [It's not the original vocoder, but it IS the original Korg vocoder] I feel it's far superior to the vocoder features in the newer units. [I own an MS2000R and the vocoder in it does not hold a candle to this] This is probably due to it being made EXCLUSIVELY to be a vocoder. This has both Microphone and carrier signal inputs to allow use as a processor. It's a gas to run a drum machine through it to create VERY unique timbres. The built-in carrier signal features an "ensemble" effect which is somewhat like a chorus effect - not unlike the chorus effect on some older roland gear. You can mix the carrier signal with a built-in noise generator for more varied effect as this enhances any sibilance present on the mic input.

The top panel mic input is for a proprietary Korg mic which I never owned. I have heard that they were kind of crap anyway and the only advantage is that they attach directly to the top panel. Any mic with a 1/4 plug can be input to the front panel mic jack, and this is how I have always used it. If you are using a more exotic mic, or something that requires phantom power you will have to figure out how to do so. I always used a simple Beyer dynamic.

NOTE: The interface standard is the old and somewhat odd Korg Hz/V system, wherein the frequency is proportional to the control voltage [not the more common 1V/octave as on MOST older synthesizers and virtually all new modulars]. It is possible to adapt a "standard" 1v/Oct to communicate with this, but it's not perfect and prone to inaccuracy at the extreme ends of the range. This WILL interface with other old Korg gear [MS-10/MS-20/MS-50/SQ-10/etc] with no trouble at all [I have connected my MS-10 and it works perfectly].

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