I enjoyed really enjoyed the review. This seems like a cool piece equipment and  I was interesting to hear someone's impressions of it. Thanks ForShure 

Thanks, that really helped clear some things up for me. I've always assumed that the 702 was a whole class ahead of the 598s, which I guess was just because of the 702's "classic" status. I've read before about the unnatural sounding upper mid spike you're describing, but I had previously...

It sounds like you didn't like the K702 then? I have a pair the HD 598 and was thinking about getting the K 702. Would a K 702 be a good upgrade or not?

Listening to Friends by Led Zeppelin from Led Zeppelin III. Such an underrated song by them. I love my Sennheiser HD 598s for listening to Zeppelin!