Korg 707 (1987)

Name: Korg 707
Brand: Korg

A 49-key FM performing synthesizer released in 1987, designed for live use with a front-panel performance editor.

Overview

The Korg 707 is a digital performing synthesizer released in 1987 (conflicting sources cite 1983-1987). It runs a 4-operator FM synthesis engine. Korg sold it as a portable, performance-oriented instrument for stand-up live use, with a 49-key keyboard, which is four octaves. Polyphony is 8 voices in single mode and 4 voices in layer mode (conflicting sources claim 64-note polyphony), and it is multitimbral across 10 combinations. The front panel has a dedicated "Performance Editor" for real-time control and a 20-character, 2-line backlit LCD for navigation. It is compact, but it was positioned as a serious FM synth, not a toy. It has warm digital sound generation and full MIDI connectivity.

Specifications

Keyboard	49-Key
Production Year	1987 (conflicting sources cite 1983–1987)
Synthesis Type	FM
Operators	4
Polyphony	8 voices (Single mode), 4 voices (Layer mode) (conflicting sources claim 64-note polyphony)
Display	20 characters / 2 rows, backlit
MIDI	MIDI CONNECTORS
Modes	Single, Layer, Combination (10 Combinations)
Sound Engine	Digital performing synthesiser

Design

The Korg 707 is portable and has a numeric keypad and a front-panel Performance Editor for live control. It was made for stage use, with a layout set up for quick access during performance. The number pad is known to wear over time, and some units show faded numerals.

Market

Used prices for the Korg 707 vary widely, from $36.62 to $521.99 in excellent condition. One unit turned up at a swap shop for $7. Common issues are worn number pad labels and a dead battery, which needs replacing to restore factory settings. Spare parts are occasionally available, and the synth still works decades later when maintained. A sample pack of 104 WAV files and the original owner’s manual are available online.