Perhaps the Audya is greater than the G-70, but it depends on what "greater" means to you.

I like an overall balanced sound, not just robust bass and drums...the G-70 (and Tyros3, and Korg PA2Xpro) have a far better balanced sound, when I compare the on-line demos.

That makes them "greater" to my ears.

I'll probably never see or play an Audya, I'm afraid, for it is too much of a mystery for the music dealers in my territory to risk the investment of bringing one in....so I have to rely on on-line demos for comparison.

Other than the more robust (and often, too loud) drums and bass, I fail to hear anything else that trumps similar products by the big three.

Ian