Whenever a question arises, regarding sound stage and imaging; I make this suggestion: The following provide tests, with which one may determine whether their system actually images, or reproduces a sound stage, as recorded. ie: The LEDR test tells what to expect, if your system performs well, before each segment. On the Chesky sampler/test CD; David explains in detail, his position on the stage and distance from the mics, as he strikes a tambourine(Depth Test). The Chesky CD contains a number of tests, in addition to the LEDR. (https://www.audiocheck.net/audiotests_ledr.php ) and: (https://www.discogs.com/sell/release/2818064?ev=rb) An article, in Stereophile, on the subject: (https://www.stereophile.com/features/772/index.html) The LEDR eliminates the variables, far as what's on your source material (recording/miking methods, etc), when doing listening tests, in your room.
Is there measurement that correlates with cohesive/pinpoint imaging?
I am currently using single-driver Omega alnico speakers which have the most coherent imagining that I've ever heard. However, if I wanted to compare them with other speakers (including multi-way speakers with crossovers) in that regard, are there any specific measurements to account for? Would measured delay between driver signals in a multi-way speaker be a useful proxy?