same as Tyros models..?

No.........

Hi Donny,
It has a much better feel than my psrs950.

What did the Tyros have?

FSX with aftertouch... same as Genos

Hi ,
actually be interesting to know what differences there are between the two, apart from the aftertouch of course.

Good to know ...can't wait to touch it..

FSX is also semi-weighted as is 4x,Ketron G-70 Etc. Same keybed Yamaha uses in High end Synths,workstations etc...Hope this helps. But semi-weighted is not for every ones liking as Don Mason talks about....Harold

My guess is that the FSB is an improved PSR rather than a cut down FSX. But the name implies the latter and the description has a lot of features in common with the FSX.

Having disassembled both FSX and PSR Keybeds the main difference is a discrete metal spring and some weight on each key for the FSX . The aftertouch mechanism does not affect the keybed feel. The FSB has gained some weights and that could mean a spring is necessary because the very crafty but inexpensive use of the rubber contact strip as the spring mechanism on the PSR might not be strong enough.

Anyone seen a service manual? That would give some good clues!