Speakers that excel at depth/layering/space

I am looking for comments on what speakers you have heard that provide a lot of depth, but with the depth, also layering and separation in the depth or soundfield.

Width and openess is one thing, but depth with layering and space from front to back is much rarer.

One speaker that recently impressed me was the PSB Synchrony One with Mcintosh amp and front end.

I've demoed a lot of equipment but don't hear this aspect that often.

Any comments or experiences to share?