Katun
Headphoneus Supremus
Absolutely fantastic! Have a look:
http://www.headfonia.com/old-school-trio-akg-k701-beyer-dt880-sennheiser-hd650/
http://www.headfonia.com/old-school-trio-akg-k701-beyer-dt880-sennheiser-hd650/
the K-701 as "plasticky," and I agree that the HD-650 is the best of the bunch.
the DT880 has a "smiley face" response, with boosted bass and treble. The HD-650 has neutral tonality,
The K701/K702's really don't get much love. I really don't get it either, but my exposure to higher end headphones has been pretty limited.
Still, I heard the K702's, and the HD600's (recabled with some ALO cable), and felt the K702's were in a different league entirely. I just can't get past the veil of Sennheisers. the K702's were so much more enjoyable on just about every level. Maybe a little less bass, but that's about it.
Well, I hate the K702 and love the HD650, but what does that mean? We could go on with those sorts of posts all day. No one opinion is any more valid than another.
A great article though.