Honestly, I'm not sure whether it's changed. The soundstage is still pretty vast for a closed headphone. I also have the AT 3000ANV here, and it doesn't even come close in terms of soundstage. I hear the Nightowl's soundstage as being wider than my HD650's as well (though, of course, the HD650 sounds more open).
1/8/17 at 9:50am