Filter
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Appendices
226
AL-1 Oscillators Ultra-low-aliasing oscillators, using a new design.
OSC1, OSC2, Sub OSC, Noise Generator, Ring Mod, modulatable oscillator mix.
Audio input Run real-time audio through the synthesis engine, including ring mod, filters, drive circuit, amp,
and EQ.
Filters Dual multi-mode filters per voice.
Single, Serial, Parallel (with split stereo output), and 24dB(4-Pole) configurations.
Low Pass, High Pass, Band Pass, and Band Reject modes.
Multi Filter mode (Filter A only) Modulatable mix of Low Pass, High Pass, Band Pass, and dry
input, for creating a wide variety of unique filter types and
effects.
Driver Per-voice nonlinear driver and low boost.
Modulation 5 Envelopes, 4 per-voice LFOs, 2 Key Tracking generators, 2 AMS Mixers
Per-voice Step Sequencer: 32-step sequencer with smoothing, adjustable step duration, and
tempo synchronization.
CX-3 Tone Wheel Organ Model A further evolution of Korg’s acclaimed CX-3.
Phase-synchronous tonewheels (clean and vintage modes), percussion, key click, wheel brake
EX Mode Four additional, user-specified drawbars, and expanded percussion.
Built-in effects Rotary Speaker, Vibrato/Chorus, Amp with overdrive, 3 Band EQ (Treble, Mid, Bass)
Drawbar Control 9 front-panel sliders (using Tone Adjust).
Split Full control of upper and lower drawbars, even in EX mode.
Modulation 2 AMS Mixers
STR-1 Physically modeled string Includes physically modeled damping, decay, dispersion, nonlinearity, harmonics, dual pickups,
and more.
Almost all string parameters may be modulated in real-time, for unsurpassed creative and
expressive control.
String excitation Three independent excitation sources can be used simultaneously: Pluck, Noise, and PCM.
16 preset “pluck” types, with modulatable width and randomization.
Noise generator with saturation and dedicated lowpass filter.
PCM Oscillator Korg’s ultra-low-aliasing technology, as introduced in the HD-1.
4 velocity zones per oscillator.
Uses any mono ROM, EXs, or RAM multisamples.
PCM can either be used as an excitation signal, or layered with
the output of the string.
Excitation filter Dedicated 2-pole multimode filter for shaping the string
excitation.
Filter can be enabled/disabled separately for each excitation
source.
Low Pass, High Pass, Band Pass, and Band Reject modes.
Audio input and feedback Run real-time audio through the string, including feedback through effects.
Modeled feedback includes modulatable instrument-to-amp distance and orientation.
Filters Dual multi-mode filters per voice.
Single, Serial, Parallel (with split stereo output), and 24dB(4-Pole) configurations.
Low Pass, High Pass, Band Pass, and Band Reject modes.
Multi Filter mode (Filter A only) Modulatable mix of Low Pass, High Pass, Band Pass, and dry
input, for creating a wide variety of unique filter types and
effects.
Modulation 5 Envelopes, 4 per-voice LFOs, 2 Key Tracking generators, String Tracking generator, 4 AMS
Mixers.
MS-20EX
(Optional)
CMT Modeling Uses Korg’s CMT modeling, reproducing not only the sound but also the character and response
curve of each parameter in a way that is completely faithful to the original model.
Oscillators Ultra-low-aliasing oscillators.
VCO1, VCO2, Ring Mod, Pink and White Noise Generator.
Audio input Run real-time audio through the synthesis engine and External Signal Processor.
Filters 12dB/octave High Pass and Low Pass self-resonant filters.
ESP section: 24dB/octave Low Cut and High Cut filters, available per voice.
Patch Panel Patchable audio and modulation, at audio rates.
New features, compared to
the original MS-20
New patch points: VCO 1 & 2 outputs, HPF input, LPF input and
output, VCA input, EXi Audio Input, BPF input, Mixers 1 & 2
inputs and outputs.
Dual 2-in, 1-out mixers for scaling and merging audio and/or
modulation signals, including phase inversion.
Patch “mults:” connect one output to many inputs.
ESP (External Signal
Processor)
Use incoming audio as a trigger and/or CV source.
Modulation Original DAR and HADSR EGs 1 & 2, original MG (updated with MIDI sync), Sample-and-Hold,
MVCA
4 additional multi-stage Envelopes, 4 additional per-voice LFOs, and 4 AMS Mixers.