Actually not quite true Diki.. You can replace any sound within any style on the PA2x using your own unique samples and sound patches if you want.

For example if I created a guitar sample that was a killer sound, I could use that in every factory style, and store it in one of the factory guitar patch locations. Then every factory style that accesses that slot would then use that patch.

Of course how good it would sound would depend on what the style had programmed as far as notes went, but I think you get the idea.

So it IS possible on the Korg OS.

In addition a user, if they so wish can over-write permanently EVERY factory sound patch and style... A bit ridiculous to actually do, but the Korg OS allows this.

The ONLY limitation is the amount of space Korg allow for user sound patches. You would certainly be limited to how many, but if they were really killer sounds a user possibly would not need that many.

Still, I do agree generally with your comment that they ALL have limitations, in this case it's the space allowed to add your own patches.

Dennis