I auditioned them last weekend. The stage is about 1 metre in depth. This means it is still a 2 dimensional speaker. The demo was done with the most expensive Esoteric monos en pre amp. They are able to create a deep stage. All the tests with the D1 and D2 both had about 1 metre of stage depth. When audio has no parameters you can name everything highend. My personal opinion is that a holographic 3D stage is an essential part of highend. Without it always will miss an big part in emotion.