Given a choice between an E80 and a G70, I’d pick the G70 every day! 76 notes is a lot friendlier to play full piano parts on (and that action is to die for!) and the G70 had a 64MB main piano sound (that was a lot of RAM for one piano back in the day!) that was changed for the E80. I did a LOT of session work using the G70’s piano sound backin the day and it held up VERY well in a pro mix.

It’s one of the reasons I still keep one. Wonderful sound!

G70 is a bit lighter despite being a 76 (no speakers) and only had one SRX slot (E80 had 2), but unless you play no two handed stuff at all, I think it’s the better of the two.
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An arranger is just a tool. What matters is what you build with it..!