My system is currently in a state of flux as I had to sell my SCD-1. I replaced it with the 775 I had at work, and revamped my work system. I finally have my own dedicated room, and it is a wonderful thing! I plan on either buying a CD player with volume control and unloading the preamp, or modding the 775.
Jposs, here's a suggestion for your next step: you don't mention what rack you are using. Consider a really good one to reduce vibrations--it's amazing what this can accomplish if your system is already well-matched and properly set up.
Most of the time, yes, I prefer multichannel to stereo. It is, of course, dependent on the mix. But a well mixed m/c disc I nearly always prefer to the stereo. There are quite a few discs I own that I wont listen to in stereo period, unless I am in the car and dont have a choice. And even then I usually find myself waiting to be in my m/c setup before I listen to them.
System edited: The power cord changes dropped the noise floor significantly and widened my soundstage dramatically. All of my previous power cords were stock. The system also seems to have brightened up considerably, and I haven't had enough time to decide whether this is a good or bad thing, but I will know soon.
I use a cdr-880 as a secondary cd player in my main system. It's a bit faster than my scd-1. I noticed the same thing. Sure it has haze & less air/soundstage compared to the $8000 audiomod scd-1 sitting next to it, but overall it's just a 'good' sounding component. It doesn't seem to have the jitter level of most cd players.
A good upgrade would be a bel canto dac 1.0 or 1.1. I use my 'extra' one with the phillips, and it does improve the sound quite a bit. You can pick those up for 500 - 600.
I'm glad you are content w/your system. It's amazing how some components sound great together and fortunes don't need to be spent. Earlier in the day I checked out Yamaha 5-disc CD Changers (CDC-655,I have this in one of my systems, and the CDC-755) on e-bay. Really nice sounding reliable players, IMO. In the future if you might need a disc changer check out these. Cheers! Bill