So now I'm gonna through a spanner into the works...
Just received my brand new sealed K701 today. Been listening to them on both my rigs. My rigs are quite neutral sounding (or the best I can do ). I like them to be neutral for my LCD2's.
I used to own the original K702's and really liked them, but the upper mids used to get to me... And I don't like equalizing. I was originally going to get the Annies, but they are just too expensive here in uk (I could get HE500 cheaper for instance) So when I saw an offer in Amazon for the K701 I snapped a set up.
So what a surprise I got when I plugged these white puppies into my bedside Magni. Smoooth-ish highs. Yes you heard it. Smooooooth-ish highs. Just in-case no-one got that, I said 'smoooooth-ish highs'. Not Orthos smooth or 650 rolled off, but not my old K702 bright either. Don't get me wrong and for fear of coming across as exaggerating, these are still bright headphones. Only they do seem more treble friendly than I remember.
And you know what else I got..? I got warm balanced bass. Good bass. Not LCD2 bass, but not far from HE500 (with velours) bass and similar to Senn 650.
I bought some DT880 pro's last week (I'm working my way through some old classic hp's at the mo) and I can confirm that my K701's have more bass. The DT880's aren't lacking in bass if you want a neutral hp and what they have is nice and tight. Anyways, this is not a bash against the beyers because I think they're great. Just saying.
It may be a case of burning these in a little more. We'll see, and I'll keep you updated. But for now, I'm really enjoying the AKG sound again :) that soundstage and imaging is just brilliant.
With that in mind, I'd defo agree that AKG could be tuning their drivers (or messing with the housing to make them a little more warm) as the years go by. My old K702's did not sound like this.
Why can't they leave the poor k701's alone? They're a dying breed to begin with, discontinued and all.