The depth in recording comes from the distance the mic is from the noise maker. Mic right up on the singer, the singer should pop out of the front of the speaker and vice verse. same with horizontal and height.
3-Dimensional Soundstage
I have appreciated a quite nice separation of instruments in my system's soundstage. I have read many times about people experiencing depth in their music and have never appreciated this. I was talking to an audiophile friend this week about it and he brought up the fact that recorded music is a mix of tracks and how could there be any natural depth in this? If there was a live recording then yes, it is understandable, but from all studio music that is engineered and mixed, where would we get depth? Are the engineers incorporating delays to create depth?