Hello everybody! The first time i put my fingers on the keybed, i had this strange feeling that Yamaha has tried to put the S910 into the S710... The looks, feel etc are so much like the S710... But the amplification is really good. I would say it was a noisy affair in the local store here in India, but the sound from the in-built speakers were good enough to decimate the decibels. One last thing, I played on the SA Concert Strings and the SA Studio Strings; but i feel the strings on the Korg PA 600 are slightly better than the PSR 750? Does someone agree with this?