I really only have had this phenomena happen a few times. I have Maggies 1.7, Dyn C1 sigs, Harbeth SHL5 as well as tube and SS amps. I love them all and I love the hobby. However, this ultra real 3D has only happened with my Harbeths (on Exposure amplification). Harbeths are said to be easy to place but I found them to be ultra critical. Anyway, not trying to open a Harbeth can of worms - just pointing out that they do this for me and they are not know as resolution champs.
The other system that does this for me is at my grimy computer desk in my garage. The speakers are $40 Altec Lansing 2.1 computer speakers playing off my computer. The weak link in the chain is every link in the chain! There is nothing in the path that I would say is admirable. Also, the speakers are positioned almost at my sides (more like a 20 degree angle. I think this case is lust me sitting conveniently in a good spot between the two channels, however marginal their quality.
The other system that does this for me is at my grimy computer desk in my garage. The speakers are $40 Altec Lansing 2.1 computer speakers playing off my computer. The weak link in the chain is every link in the chain! There is nothing in the path that I would say is admirable. Also, the speakers are positioned almost at my sides (more like a 20 degree angle. I think this case is lust me sitting conveniently in a good spot between the two channels, however marginal their quality.