Arturia KORG MS-20

Arturia KORG MS-20 V is a conceptual software synthesizer engineered as the definitive, expanded virtual emulation of the legendary KORG MS-20—a highly aggressive, semi-modular monosynth celebrated for its unique, biting filter, patchable flexibility, and raw, uncompromising analog sound. Moving far beyond a simple sonic replica, the MS-20 V meticulously captures the core architecture of the original: dual oscillators, two distinct filters (High-Pass and Low-Pass), and the signature External Signal Processor (ESP). It is the definitive tool for producers seeking harsh basslines, screaming resonant leads, experimental sonic textures, and the hands-on control of a classic, powerful, educational synth.

The Architecture of Dual-Filter Aggression

The core strength of the MS-20 V lies in its unique dual-filter design and aggressive internal sound path:

• Dual-Oscillator Power and Noise: The plugin models two independent Voltage Controlled Oscillators (VCOs), generating Sawtooth, Square, Triangle, and Pulse Width waveforms. These oscillators are known for their stable yet raw analog tone. Importantly, the White and Pink Noise Generator is modeled for its coarse, bright character, often used as a third sound source or as a modulator for experimental textures.

• The Dual Cascading Filters: The signature of the MS-20 is its two cascading filters: a High-Pass Filter (HPF) and a Low-Pass Filter (LPF), which can be configured to operate in series. The modeling captures the notorious non-linear resonance and aggressive sound of the original's filter circuit, particularly the later revision filter which is known for its ability to self-oscillate and scream when the resonance is pushed. The combination of LPF and HPF allows for complex band-pass and notch filtering with extreme resonance that can sound metallic and almost vocal-like.

• The External Signal Processor (ESP): This unique feature, faithfully modeled, allows external audio to be routed into the synth. The ESP can extract the pitch and amplitude of the incoming signal, turning it into control voltages (CV) that can modulate any synth parameter. This transforms the MS-20 V into a powerful audio processor for filter-tracking vocals or driving synth lines with drum rhythms.

Semi-Modular Flexibility and Modern Expansion

The MS-20 V retains the crucial semi-modular design, encouraging experimentation:

• The Patch Bay: The iconic patch bay is fully replicated, allowing the user to override the fixed internal signal path (the "semi" part of semi-modular). This enables complex routing, such as feeding the LPF output back into the VCF input, or using an envelope generator to modulate the LFO speed.

• Polyphony and Sequencer: While the original was monophonic, Arturia expands this with full polyphony. Furthermore, a modernized Sequencer/Arpeggiator and a comprehensive Modulation Matrix (extending beyond the original's limited CV ports) allow for complex rhythmic and expressive sound design.

Arturia KORG MS-20 V is the essential software synth for capturing the raw, abrasive sonic power and hands-on, experimental spirit of one of analog synthesis’s most aggressive icons.