Well, I just got these in the mail from Amazon. Amazon Prime 2 day shipping is so great
First impressions- They do in fact sound very open, almost as much so as my Q701s.
I've been wearing them for about an hour and a half now, and I have no comfort issues at all, but I do have a rather large head, and the bumps on the q701s caused me no discomfort either.
Now I'm not the best at describing sound and such, bit of a newbie in that field, but I'll try. I'll be comparing them to my Q701s as a reference.
Bass- It's there, but not much more so than my 701s when they're amped. These don't seem to scale all that well with more power, and there isn't much of a difference in control or bass between an E6 portable amp and my E9 desktop amp, unlike my 701s.
Mids- Nothing of note here really, they seem like typical neutral (with the exception of that upper mid peak) AKG mids. If anything, they're less involved and colder than the 701s.
Treble- Ouch. I have a lot of subpar/amateur recordings in my music collection, and these headphones are just
harsh with anything that is either badly mastered or just has a lot of treble. It extends nicely on well recorded songs, and seems very detailed, but it can just be painful, sharp, and overall not fun sometimes.
Compare this to the Q701s, they still have that extension, but they
never have harsh treble, regardless of what's playing, assuming they're amped. I know these aren't going to compare because they're closed, but it still bothers me nonetheless, considering I ended up paying more for these than the 701s.
I still haven't burned them in, but I'm not a big believer in that anyway.
Worth the money? I honestly don't think so, of course I bought them for a lot more than what they usually go for. I was looking to get something that was maybe a bit bassier and slightly warmer than the 701s, since they're missing that sort of musicality, but I suppose I'll have to look elsewhere.