Initially, after this post, I had in the back of my mind a feeling that there was a slight possibility of myself being flamed to death....hmmmm, another surprise. The responses so far have been extremely informative.
Sean, I must say, many aspects of your response do fit. The ss amp hadn't been used in a while and obviously, another set of interconnects was added into the mix. The feed from the JoLida came from the sub out which is what I consider to be preamp out, while the ac power stemmed from a conditioner. But, at the time when I first switched from the ss pre/power setup to tubes about a year ago is when I noticed a huge increase in the size of the stage.
As far as phase goes, I can switch it with my cd player, and I have a few times just to see the effect. So far I haven't noticed any changes including stage height. By the way, "Amused to Death" is the most involving cd I own, almost hypnotic. I imagine phase mods do play an important part in the dog barking from behind, the submarine captain's activity descriptions coming from my IMMEDIATE left, and the horse-drawn wagon coming from the left rear, across in front, and away to the right rear. I love it, I use it as a reference for system and listening position setup. Is it possible that there is some phase trickery in the output section of the JoLida? It seems pretty well focused.
Volume level. I know things get larger when the sound gets cranked up but the level seemed to be the same in my comparisons. But I didn't check it with my Radio Shack toy.
Bloom. Is this the answer? Is this what I'm experiencing? I've heard the term but never understood what it meant. Till now? How do you get bloom?
The engineering involved in the recording doesn't seem to apply in this case. It's more about the equipment I think.
Finally, S2k dude, you made me think. Does our brain subconsiously recognize sounds that only come from ceilings and floors and somehow calculate size from that information? Therefore, equipment with very high resolution has the ability to pass this virtually inaudible info on to us to create the illusion of height. Is it the resolution?
Thanks everyone.