Yeah this is a quality that is maybe better expressed as the ‘liveliness’ of a headphone - or I think Tyll referred to it as ‘punchiness’. Importantly it also doesn’t seem to be correlated with anything measurable, so it’s not related to bass level as some people imagine. You can demonstrate this quite easily though by comparing something like an original HE-6, which has exceptional macro contrast, and one of these DCA’s, even though the DCA’s have a noticeably higher bass level.
Another great example of macro contrast is typically what you get from most Focal headphones.
Again, it’s not something I care that much about, because I’m more of a detailhead myself. But I know some people care about that quality more than detail. And I do agree that there’s a tendency for the absence of it to make things sound a bit compressed.