Most of you in this forum have a lot more experience than me..that said...

It appears to me, with what understanding I do have, that most arranger upgrades within the same model are really just software upgrades.

For instance, Tyros 4 to Tyros 5, really just a software upgrade?

Korg PA2X to Pa3X just a software upgrade?

These would be just two examples.

Any thoughts?

Tx