Last night, I had some down time and fired up disc 2 of Roger Water's In The Flesh CD. Once again, the soundstage was wide and deep. Those who are familiar with the disc will recognize the track where "HAL" from "2001: a Space Odyssey" is asking Dave to stop. I have heard this disc 100's of times. This time, HAL was floating above, and sometimes, above and behind me.
In addition, the entire performance locks down the drums well behind the front wall of singers and guitars. When Susannah cuts loose, one can follow her as she walks along the stage, and she is delivered with authority and not a hint of harshness. The Infinity IRS Sigmas added a harshness to her voice that was disconcerting, as did the Legacies.
Bass was not subwoofer deep, but was tuneful and solid to mid 20's. As I am used to the Axiom's flat to 13 Hz response, my expectations for subwoofer level bass are REALLY deep.
Another win for the SSC-4900's.