Jammin- I doubt you can hear any phase problems with just casual listening.

You have to specifically test for it, either with CD/DVD test tones, or even at least with music/movie sources, you have to specifically test by knowing what out of phase sounds like first, and then comparing the digital and and analog crossovers in the 950.
Good to know that the Pioneer's SACD sound quality is "close to" that of the Sony...