Well for me I'm no Yamaha fanatic, I donít own T1 or T2. I own the s900 because of the price point and SA voices & styles that were included in the board that I like very much.
For whatever reason I guess Yamaha can not update T1 to include SA voicing, maybe they donít want to, or canít because of software/hardware, etc. But the update that Korg has now issued for free was for their current boardís pa800/pa2x. They did not extend to the pa1x/pa1xpro or the pa80. Why? lack of hardware, etc.
Ketron X1 (Oldie but Goodie)