Pros: True flat response.
Cons: I don't have a mellon head.
Some have said that these are more suited to classical. I understand why. Personally, I knew I had a keeper after my first session with my Lo Fi blues collection. Hard to admit, but better than my cherished k280. I have number 29222. Funny thing, mine has the "akg" swivels on the headband. Not lower near the driver. Thats where the left and right identifiers are.