My Tyros4 weighs about 38 lbs with the case, so I'm not too concerned with weight, and, like Deane (Hammer), I much prefer it over an S950 for gigging.

The overall sound is beefier, not to mention those wicked and very expressive SA2 voices.

It's an instrument that can be used equally at home, on stage and in the studio. I would put the S950 as more of a "home" instrument than the Tyros, mainly because of the former's built in speakers, although it does manage to find its way on many stages, at least for several SZ'ers.

Part of the Tyros4's (and T5's) heavier weight can be traced to the FSX semi-weighted keybed, and, I for one, don't mind the extra pounds when I can have such a fine action under my fingers.

Tactile response is important to me, equally as much as expressive sounds, and the Tyros4 (and T5) excel at both.

Ian

PS...my buddy with the Tyros5-76, Johnny Coy, does solo gigs at least three times a week, and he just turned 76 years old...the weight is no problem for him either.