I gave it a couple hours to warm up and stuck one of my MSO hybrid SACD/CDDA's in. No dice. Reads the CD layer fine, no SACD love. I have an email in to the seller, as the picture (seen above) does show it with a SACD in it (reading it, apparently), but if it's the disc I think it is, it's not a hybrid SACD.
It does read regular CD's just fine however, even my most heavily soiled and abused CD-R's. Load times are a bit on the slow side, but not as bad as some players I've owned. My first SACD player (also a Sony) took long enough that I could nuke a cup of coffee, add cream and sugar, and be back in my chair just as it finished loading. And it can't even begin to compete with the positively glacial speed at which my Blue Ray player initializes BRD's.
Sound with Redbook CD's is much better than I had hoped or expected, based on the above comments. I would put it as definite upgrade over the old 640c, and among the best single-box units I've heard, with maybe the Marantz SA-1 having edged it out. My one exception to the overall sound is the slight edginess given to certain types of high-frequencies, though it could just as easily be flatter response up in the 16k-20k range. I guess I'm more used to the slightly softer sound of the Cambridge deck. Bass is tighter and possesses "slam" that I didn't realize the Cambridge was lacking. Vocal ranges, especially female vocals (Julee Cruise, Björk, etc) are much more "analog" sounding, having a delightful sense of air and liveness. Imaging is also exceptional. This is an area where I thought that the 640c could not really be improved upon, and, essentially, I was correct, but I would give the Sony the edge in this- while perceived depth is about the same, the soundstage is a little wider with a better sense of space. Additionally, quieter passages are "blacker", with the ability to really reveal very quiet and low-level detail. Again, this was all stuff that the Cambridge was good at, but the Sony does improve upon it.
I've not really begun to critically examine the various filter settings, but based on the little I have, I would have to say that so far, my preferences lean towards either the "STD" setting or "1" setting. I don't really know what the filters are changing (I have yet to crack open the manual), but the STD setting seems to be well balanced between exposing detail and giving a sense of "air", where as the "1" setting seems to give up a smidgeon of detail in exchange for a greater sense of "air". The other settings seem to progressively make the sound both softer and more ethereal to the point where "4" imparts a slightly exaggerated stereotypical "tube" sound, with a benign, but noticeable lack of focus, but wide and lush "back row" presentation.
And, there you have it- the first 30 minuets summed up. I hope that the issue reading my MSO hybrid discs is simply a compatibility problem, but I won't know for sure until either the unit is examined or I happen to get a SACD-only disc; it's a fine CD player, but I think I could have gotten a "fine CD player" for considerably less, and I was hopping to get a great SACD player out of the deal too.