Korg M1 Analog Workstation Synthesizer New Battery Presets Restored Hard Case
Main KORG M1 Synthesizer Unit. Rare KORG M1 Technical Reference Book. ■ Maintenance & Battery Status (Ready to Play!). (Note: This is a native Japanese 100V AC model. Audio Output (Partial Defective): During our recent checklist inspection, we found thatAudio Output 3 and 4 do not output sound. ).