The speakers just disappeared leaving this seamless soundstage where noises just happened within it, rather than relative to the L/R points of the spectrum like

The speakers just disappeared leaving this seamless soundstage where noises just happened within it, rather than relative to the L/R points of the spectrum like most speakers. It was incredible. This make me curious about this whole situation: speaker change equals physical location change, would that have played a part in it? Because what you describe here is exactly what (at least for me) is the effect of proper speaker placement vs suboptimal placement. I.e. this 'you don't hear the speakers anymore, instead it sounds like you're sitting in the sound' effect. Which definitely isn't there if placement is off, no matter how good speakers are. Then again, I'm not really an audio engineer so maybe you're talking about a different level of soundstage..