It doesn't look like a replacement for the SD7, for a start it's 76 keys.

I got all excited when AJ suggested the new offerings would have less weight, only to find it's only 2 lbs lighter than the Audya, and at 36 lbs the same weight as the Korg PaX4 76.
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Graham, Korg Pa1000, Korg G1 Air, Countryman E6, Roland BA330, 2 x Roland CM-30, , Mackie SRM150