sennheiser could do it.
it's the killer headphones. the one who rules them all. ok, not he90 rules them all. but a headphones everybody could buy. only a good a90 amp, which brings this headphones 2 levels more. after 25 years the he60 is the best of them all. i havent heard a phones which is better. i dont understand sennheiser. it's a killer. i've heard hd600 or 650. it's nothing compared to a he60. now, i know why every sennheiser engineer bought a he60 in the 90's. they knew.
This is not perfect..., i think the DCA VOCE is better tech.