that's quite alot of money, for 170$ you have a beyer dynamics dt770 closed cup headphone that's without a doubt alot better than that AKG....^^dt770 are usually the professional headphones you see in radio studios, recording studios, or the single ear model being worn by professional AV crews...
however, i too have an AKG for daily use, i have the AKG k518 dj that also has exquisite soundquality, still looks hip and trendy and only costs 60$
so for professional use in recording studios, get a Beyer Dynamics DT770^^seriously, for that money there isn't a single headphone that comes anywhere near the DT770's soundquality
and for daily/recreational use, akg k518