All these demos VS each others, etc, etc, after a while what do they really mean when you can alternatively change, edit, and do just about anything to alter the sound of each KB to where you need it to be so what's the point? At this time many sound terriffic, just buy one and enjoy, after all it wont be you last unit anyway so play & make music.
At the current level they all sound incredible..
Thats why the features and imterface innmy vision have become more important then the minimal sound differences..
These video’s indeed are proof of your statement.
Ketron, Roland, Korg and Yamaha arrangers all sound terrific in all departments.
Only Casio still can’t convince me. They still have to many weak orchestral sounds..