The problem with some AT wing headphones is how fit affects the sound, hard to know the true potential of L3000 without having it, for example AD2000 lacks clarity , sounds wonky, and has wonky separation for my ears if I use it stock, the strong pressure plus thin pads with no depth at all ...
But if I wear the L cup on my right ear (reversed, lol) I get a different fit, clearer more airy sound and not as wonky, 2000x does not work with that since it does not even seal well when you use them "reversed"(ad2000 does for me)
I suspect W3000ANV and similar ones (That I don't have) have fit problems for some people, because some said that to him, the w3000anv drivers could have been from a 39usd headphone and that it was a disappointment
I also kind of have issues with w1000x, If I don't adjust them well they lose some bass and thickness in the sound, While A1000Z and A2000Z sounds almost the same when you move them on your head(in MY experience) ( of course if you do massive fit variations, they change the sound but it is way less intense change than with other headphones)