Korg Product Specialist Nick Kwas today shared an official statement on Prologue tuning, acknowledging pitch tuning problems that some users have encountered with the company’s new flagship synthesizer, and promising a firmware fix later this year.
Here’s the official statement:
Korg has recently received reports of a slight detuning on a small and isolated range of keys on our Prologue8 and Prologue16 synthesizers.
We have since been investigating the source of the behavior extensively, and believe the issue is present within the software responsible for tuning stabilization. Once the problem presents itself the behavior does not become worse over time. In fact, performing manual tuning may improve performance.
We take this matter very seriously, and assure Prologue dealers and end users that we are committed to correcting this issue with a user-installable software update by the end of 2018.
Our ongoing commitment is to deliver the very highest-quality musical instruments. We apologize for any problems this issue may cause, and thank you in advance for your understanding and patience.
Some users have reported that when they play a noted repeatedly on the keyboard, the pitches can vary as much as 15 cents (there are 100 cents difference between pitches a semi-tone apart).
Kwas added that their firmware team is currently working on tuning issues related to tuning in lower octaves. For Prologues that encounter unusual fluctuations in tuning, he recommends running a manual tune procedure (shift+exit) to retune.