Seems that these Anniversary's are on their own, at least from what I read here so far. I would be damn surprised if K702 Ann will not develop during burn in, cos all AKG K/Q models are need that.
From very close K701 vs. K702 comparison test I came to conclusion that they are not the same sounding like many say, where some things are very obvious and other must be heard after many hours of testing. This is not an placebo effect and I am sure what I hear, so, the fact that Anniversary's are not the same, pove my conclusion even stronger.
Of course, the pads playing a part, but most probably there are more things involved, such as much accurate drivers matching, which AKG confirms, but maybe the cable to. There was mentioned that Anniversary are louder, well, this is one of the obvious things when I compared K701 vs. K702, where K701 are louder to. The other very obvious thing are the quality of the pads, K701 have the best, K702 just behind and Q701 are the worse, at least on my head/skin. They must use some differ material by making them. I dont know which material they use to begin with, but K701 feels less warmish and much natural, where K702 have a little warmth in them, but Q701 feels just synthetic. I am not sure if they will become better after washing them with soft soap or something, but thats how they feel at the moment.
One very interesting thing about new memory pads is that they choose for differ system to put them on their place, simply by making not possible to use them on other models? I wonder why AKG does this, however its clear that by making some little changes they create different enough sounding headphones without changing the whole concept, so, in my mind this is simply twicking the headband, pads, probably cable and current drivers, which translated in the results we read up here.
Unfortunately for me, I am not able to get them at current price, otherwise it will be easy to find out, but lucky us, some members have many of them to compare, so, I am waiting for more closer impressions.