

The Korg Delta, introduced in 1979 by Korg, is a hybrid analog synthesizer, combining a divider-based polyphonic synthesizer with a string section. Known for its simplicity and rich sound, the Korg Delta became a popular instrument in the 1980s for its warm, distinctive tones.
Virtual KORG DELTA
Korg Delta: The Versatile Analog Synthesizer
Overview of the Korg Delta
The Korg Delta, introduced in 1978, is a versatile analog synthesizer known for its rich sound and user-friendly interface. As a polyphonic synthesizer, the Delta became popular among musicians for its ability to create lush pads, vibrant leads, and deep bass sounds.
Key Features of the Korg Delta
- Synthesis: Analog subtractive synthesis
- Polyphony: 4 voices
- Oscillators: 2 voltage-controlled oscillators (VCOs) per voice
- Filter: 24dB/octave low-pass filter with resonance
- Envelope: ADSR envelope generator
- LFO: Low-frequency oscillator for modulation
- Memory: 32 preset sounds, expandable via cartridge
- Keyboard: 49-key velocity-sensitive keyboard
- Effects: Built-in chorus and ensemble effects
- Connectivity: MIDI In/Out, audio output
The Development of the Delta
Design and Innovation
The Korg Delta was designed to provide musicians with a powerful yet affordable synthesizer that could produce a wide range of sounds. Its intuitive layout and comprehensive features made it suitable for both studio and live performance settings.
Innovations in the Delta
- Polyphonic Capability: One of the few affordable polyphonic synthesizers of its time
- Rich Sound Engine: Capable of creating complex sounds with its dual VCOs
- Built-in Effects: Integrated chorus and ensemble effects for enhanced sound depth
Impact on Music Production
Genres and Applications
- Pop and Rock: Widely used in 1980s pop and rock music for its lush sounds
- Electronic Music: Popular in electronic music for creating rich textures
- Film Scoring: Utilized for its ability to create atmospheric soundscapes
- Live Performance: Favored by many artists for its reliability and sound quality
The Delta in Modern Music Production
- Still used by some producers for its unique analog sound
- Sought after by vintage synth enthusiasts and collectors
- Samples from the Delta are used in modern productions for retro flavor
Technical Specifications for Audio Enthusiasts
- Architecture: Analog subtractive synthesizer
- Polyphony: 4 voices
- Oscillators: 2 VCOs per voice
- Filter: 24dB/octave low-pass filter with resonance
- Envelope: ADSR envelope generator
- LFO: LFO for modulation
- Memory: 32 preset sounds, expandable via cartridge
- Connectivity: MIDI In/Out, audio output
Legacy and Historical Significance
- Helped establish Korg as a key player in the synthesizer market
- Influenced the design of subsequent polyphonic synthesizers
- Remains a sought-after instrument for its unique sound and character
Conclusion: The Enduring Appeal of the Korg Delta
The Korg Delta remains a significant instrument in the history of synthesizers. Its innovative design, rich sound, and affordability made it a popular choice for musicians in the late 1970s and early 1980s. Today, its unique character and historical importance continue to make it a sought-after instrument among musicians and collectors. The Delta’s legacy lives on in the design of modern analog synthesizers and its continued use in music production.