Genny,

Your recent postings remind me of an archer who always manages to hit the target, by shooting first, and then calling whatever he happens to hit, the target.

Bottom line is that this topic will have no conclusion, until someone from Yamaha marketing confirms or negates the speculations, assumptions, and musings being posted.

Many of us can recall similar hypotheses and theories being posted back when the Tyros, Tyros2, Tyros3 were launched.

Yet, Tyros4 remains at 5 octaves.

What makes you think this thread will end any differently?

Nothing has changed.

Ian