WORKING CONDITION: Very Good. All 30 of the button-activated sound options were tested and all work well. The Bank selector knob that governs these selections still feels fairly crisp with little over-shoot; meaning the sounds are easily selectable. The keyboard feels good, and the "Traveler" (attack) and Modulation Depth sliders move freely. The power / volume pot works well and boasts a healthy amount of output level.

PHYSICAL CONDITION: Very Good. The keys are solid, and all of the knobs and buttons feel great. The wood is in good condition, and the metal chassis is straight. All in all, this synth is in very good condition. 

INVENTORY #59316

BRAND: Korg

MODEL: M-500 Micro-Preset

FUNCTION: Electronic Keyboard Synthesizer

PRODUCT DESCRIPTION: This listing is for a Vintage Korg M-500 Micro-Preset Electronic Synthesizer. The Korg M-500 Micro-Preset is a vintage, 32-key monophonic analog synthesizer produced by Korg between 1977 and 1980. Designed as an accessible, compact instrument for live performance and studio use, it is famous for its distinct retro character and its prominent use by synth-pop pioneers Orchestral Manoeuvres in the Dark (OMD).

SPECS:

• Serial # 770946
• Synthesis Type: Pure analog subtractive synthesis.
• Voice Architecture: Monophonic (one note at a time) with a single voltage-controlled oscillator (VCO) and a white/pink noise generator.
• Keyboard: 32-key, full-size synth-action keybed (F to C range).
• Enclosure: Housed in a signature wood-grain vintage casing.
• Connectivity: Originally featured no MIDI, USB, or CV/Gate control, though third-party CHD Elektroservis MIDI kits are frequently added by collectors today.
• Preset Matrix: Sounds are selected using physical push-buttons. It features 6 primary categories: Voice, Synth 1, Synth 2, Brass, String, and Wood. Interestingly, users can press multiple preset buttons simultaneously to mix and layer the waveforms.
• The "Traveler" Control: Instead of standard filter controls, Korg implemented a horizontal dual-slider called the "Traveler". It acts as a combined low-pass and high-pass filter with resonance, allowing for squelchy, expressive effects.
• Modulation & Effects: Equipped with controls for portamento (glide), vibrato depth/speed, and a basic attack/decay envelope framework. 
• M-500 SP Variant: The "SP" version includes a small built-in 1000mW speaker on the bottom of the unit, turning it into a fully self-contained portable unit. 

ACCESSORIES INCLUDED: This item comes as seen in photos and does not include any accessories.

EXTRAS INCLUDED:

• None

UNPACKAGED WEIGHT: 11 lbs.

UNPACKAGED DIMENSIONS: 29" x 6" x 10"