KURZWEIL K2000 / R / S / RS Eproms OS v3.87 Upgrade auf neuestes OS Calvin oder Janis
Uses good fully refurbished eproms. Fully working and tested, upgrades to latest OS ROMS. v3.87 improves the K2000 range in many. Janis and Calvin. (If there is a "J" after the ver number, you require Janis, if not then you need Calvin).