AFAIK K702 Anniversary is supposedly the same thing as K712 (Much as Senn's HD 580 Jubilee= HD600). Who knows what you're getting with Drop; their documentation is usually a bunch of 'word salad' whipped up by the sales dept.
I don't think this is true.
I've heard the K702 Anniversary and the K712, but not side by side.
The Anniversary was so bad to my ears that I'd never want to ever listen to it for more than testing.
It actually felt too warm sounding. Everything so thick sounding and very muffled.
Even worse than some of the earlier HD-650s.
Not nearly as bad as a Q701 bass modded with K712 pads though.
Take a look at the Anniversary pads. They are totally different than the K712 pads.
They look more like round doughnuts and are way less deep. The edges more rounded off.
The K712 pads have higher "walls" around the edge of the pads.
It's possible some Anniversary pads are exactly like the K712 pads.
It's possible AKG figured out how to improve those memory foam like pads for the K712.
BTW I compared my Q701 bass modded side by side to the K712 and preferred the Q701 by far.
If the K712 wasn't a total rip off i'd be perfectly happy with the K712 though.
My bass modded Q701 did sound a LOT smoother sounding in the treble somehow.
The K712 did have fuller sounding low mids though.
I listen to a lot of harsh Jpop and the bass modded Q701 would be my pick for that.
I think I paid only $200 for my Q701 and have loved it ever since I got it.
No way i'm ever selling it. Sometimes I prefer the DT-990 Pro due to it having more low bass (and better comfort).
LOL you may think I'm insane, but I just threw away TWO K400s when I moved.
The bass was totally missing and that alone made it not worth listening to.
The early AKGs are IMO severely overrated.
Even the K501 and AKG K240 Sextette were nothing special.
I had the EP and LP K400s.
One of them I found on Amazon and the box was so old that it smelled like it had been in the guy's garage for 20 years.
I think I scored it for under $75.
I disliked both so much that I probably never used either for more than a few hours.
The K501 gave me the impression though of the hugest soundstage i've ever heard (depending on the track).
Playing Fallout 3 with that headphone was just ridiculous. You'd go into Tenpenny Tower and felt like you were listening to surround sound speakers.
But of course there is almost no bass with that headphone.
I traded it away and really kind of regret that.
I think the new owner still loves the K501 and will never part with it!