I just played a SR900. I prefer it to my SR800, and will get one someday. I don't think it's worth buying new, given the amount of bass I play. But give it a couple years, when they are all over e.b.a.y....
I didn't play it through an amp, so I dunno about the sound. But construction, QA, feel, etc. were all top notch. Apparently Korea is coming along very nicely.