I hope this is not indicative of the whole line of these new PSR "S" series arranger keyboards. I happened to play the PSR S900 today at my local GC and in a nutshell I was un-impressed with it for the most part. There are no Bass ports for the speakers and you really have to crank the volume waaayyyyy up to hear the sound at a decent level. My PSR 2000 speakers are
much louder by comparison.
I didn't like the key feel as the keys felt a little mushy to me. There is a little more resistance than my PSR 2000 keys but depressing the S900 keys felt a little like poking a stale marshmellow with your finger.

It's kind of hard to describe but that's the sensation I got when playing the S900 keys.
If you want to use the PSR S900 for mainly Organ sounds then you might want to look elsewhere for your Organ sound needs. I found the PSR S900's Organs lackluster at best. It is only my opinion of course and you may find them suitable enough for your needs.
I did like a lot of the Styles and many of them had a fresh sound to them. The LCD is bright and the text crisp and very readable. There are 23 SA voices and many of them are excellent sounding in my opinion. But sadly there are no SA String voices or SA Brass voices (other than the Trumpets). The Grand Piano is also pretty good but nothing surpassing the PSR 3000 in my opinion.
Also, no word from Yammie on how much WAV ROM is on the PSR S900. Maybe they're hesitant to post it because they just don't want to "confuse" people with facts and other technical things.

Conclusion >> If you have a PSR 3000 there would be no real reason to upgrade to a PSR S900 in my opinion unless you want the few cosmetic changes they've included on the S900 and you also want the SA voices. But I found the build quality on the S900 somewhat lacking and Beakybird's episode with the Data Select wheel right off the bat is rather unsettling to say the least. I hope this is not a token of things to come for the PSR "S" series. Let us hope it is not..
Best,
Mike
[This message has been edited by keybplayer (edited 07-13-2007).]