The Korg X-911 Guitar Synth, released in 1980, is a unique monophonic synthesizer designed to work directly with a standard guitar signal, eliminating the need for special pickups or MIDI integration. Part of Korg's MS series, the X-911 offered features like voltage-controlled filters (VCF), ADSR envelope generation, and portamento, making it a versatile tool for creating synth-like tones from a guitar. Unlike traditional guitar synths that relied on pitch-to-voltage conversion, the X-911 processed the guitar signal directly, creating a range of analog synth sounds. Though its tracking was imperfect and it was marketed as a budget-friendly alternative to more advanced systems like Roland's GR series, the X-911 became a cult favorite for its quirky character and experimental potential.
The X-911's presets and manual controls allow for diverse sound design:
The Korg X-911 Guitar Synth remains a fascinating piece of music technology history. Its ability to transform a standard guitar signal into analog synth sounds without additional hardware set it apart from contemporaries like the Roland GR series. Though its tracking quirks limited its mainstream appeal, its raw analog sound and hands-on controls have made it a cult classic among experimental musicians and collectors. Today, it is celebrated as an innovative yet underappreciated milestone in the evolution of guitar synthesizers.