Before I comment on sound...
Large-headed beware! These might be too small for you. I have to push them as far down as possible and it's not that comfortable anymore.
A clear design fault IMO, especially since they are intended for home and not portable usage. Just a few cm more of headband could probably cater to many more people.
So that you don't have to guess, I measured my head from bottom of ear(lobes) going around top of my head: 45 cm. I know I'm not the biggest since many people use longer Audeze posts.
Pad diameter is about 5x6cm inner, 11x11cm outer.
I had a feeling, just by looking at the headband design, that it'd be too small for many people. Probably for me too. I already stretched the K701/Q701 to it's limits to reach down to my ears properly.