While I don't actually own a Ketron product, I would like to comment on this thread.

Ketron are a relatively small company that produce instruments that compete successfully with those from multi billion $ corporations. That is a truly amazing achievement. And they provide innovations in arranger keyboard technology that their competitors don't. They keep the market competetive and dynamic. The arranger keyboard market wouldn't be the same without them.

The Audya really has broken new ground.