Korg EXB-RADIAS MMT Synthesis Expansion Board

The Korg EXB-RADIAS is a powerful MMT (Multiple Modeling Technology) synthesizer expansion board designed specifically for the Korg M3 Music Workstation. By installing the EXB-RADIAS, musicians can dramatically expand the sonic capabilities of their M3 with the complete RADIAS synthesis engine, adding advanced virtual analog synthesis, vocoder functionality, extensive modulation options, and dedicated synthesizer sound generation directly within the workstation environment.

Unlike a sample-based expansion, the EXB-RADIAS adds a true synthesizer engine to the M3, providing the acclaimed RADIAS sound architecture with deep editing integration through the workstation interface. This allows users to create everything from classic analog-style basses and leads to evolving pads, motion sequences, electronic textures, and expressive vocoder performances.

Delivering up to 24 voices of polyphony, the EXB-RADIAS supports four-part multitimbral operation and integrates seamlessly with the M3's Enhanced Definition Synthesis (EDS) engine. Users can layer synthesized sounds with workstation sounds to create rich, complex performances and professional production-ready textures.

Full compatibility with the M3's touchscreen interface, KARMA technology, onboard effects processors, X-Y pad, control surface, Drum Track, and sequencing environment ensures a streamlined workflow that feels completely integrated into the workstation.

Key Features

• Official synthesizer expansion board for Korg M3 Music Workstations
• MMT (Multiple Modeling Technology) synthesis engine
• Up to 24 voices of polyphony
• 128 built-in RADIAS programs
• Advanced virtual analog sound generation
• 16-band vocoder with extensive voice-processing capabilities
• Dual oscillator architecture plus dedicated noise generator
• Oscillator sync, ring modulation, cross modulation, and VPM synthesis
• Dual multimode filters per voice
• Three envelope generators and two LFOs per voice
• Three modulation sequencers per voice
• Eight virtual patch routings for advanced sound design
• Full integration with KARMA, effects, sequencing, and performance controls
• Audio input processing and vocoder functionality

Authentic RADIAS Synthesis Technology

The EXB-RADIAS brings the renowned RADIAS synthesizer architecture directly into the M3 platform. Musicians gain access to a comprehensive virtual analog engine capable of producing classic analog sounds, aggressive electronic textures, atmospheric pads, cutting leads, modern dance sounds, and experimental sonic landscapes.

Multiple oscillator modes, waveform shaping options, modulation capabilities, and filter configurations provide extensive flexibility for sound designers and performers alike.

Professional Vocoder Performance

Integrated vocoder technology allows users to create dynamic vocal synthesis effects and advanced sound-processing applications. The 16-band vocoder architecture offers detailed control over voice shaping, robotic vocal effects, and creative sound manipulation, making it suitable for both studio production and live performance.

Advanced Modulation & Sound Design

The powerful modulation system includes multiple envelopes, LFOs, virtual patch routing, and dedicated modulation sequencers. These tools enable the creation of evolving textures, rhythmic motion, expressive performance controls, and highly dynamic sounds that respond naturally to playing techniques and controller movements.

Combined with the M3's KARMA technology, the EXB-RADIAS opens up sophisticated performance possibilities for electronic musicians, composers, and sound designers.

Seamless M3 Integration

Because the EXB-RADIAS operates as a fully integrated component of the M3 workstation, users can edit sounds directly from the touchscreen interface, combine synthesizer programs with workstation sounds, apply onboard effects, and incorporate RADIAS sounds into Combinations and Sequencer projects without requiring external hardware.

This streamlined workflow enhances productivity while significantly expanding the creative potential of the M3 platform.

Technical Specifications

• Synthesis Method: MMT (Multiple Modeling Technology)
• Polyphony: Up to 24 voices
• Oscillators: Two oscillators plus noise generator
• Filter Structure: Dual multimode filters
• Envelope Generators: 3 per voice
• LFOs: 2 per voice
• Modulation Sequencers: 3 per voice
• Virtual Patch Routings: 8 per program
• Vocoder: 16-band vocoder
• Programs: 128 preset RADIAS programs
• Compatibility: Korg M3 Music Workstation Series

Ideal For

• Korg M3 workstation owners
• Electronic music producers
• Synthesizer enthusiasts
• Sound designers
• Film, television, and game composers
• Live performance keyboardists
• Musicians seeking advanced virtual analog synthesis capabilities

The Korg EXB-RADIAS transforms the Korg M3 into a hybrid workstation and synthesizer powerhouse, delivering the acclaimed RADIAS synthesis engine, advanced modulation architecture, and professional vocoder functionality for limitless creative sound design and performance possibilities.