In this comparison, I prefer the way the G70 sounds. I do agree though that there is probably a wide margin in the way the EQ is setup on both machines. I also agree that Yamaha arrangers have a certain sound that for me makes them recognizable. The T2 certainly has improved the Yamaha sound palette, yet I can go back and listen to pieces I did with my PSR 530 and I can almost flawlessly recreate them on my Tyros 2.
I think perhaps that's an inherent trait in a lot of the manufacturers. I had a Korg M1 back in it's day. The PA80 is a completely different animal, yet many of the edit menus for the synthesis engine are quite similar. Having revisited the M1 in the software version, even some of the sounds are quite similar.
I guess it makes sense to me in that manufacturers like to stay with what "brung 'em to the dance". I see it in the software realm too. Although there have been numerous improvements, the Cubase engine still has a lot of the same look and feel as it did back in the days when the Atari platform ruled the roost. Ditto "M" ( later Muszys ) and Band in a Box.
Regards
AJ
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AJ