Currently beating my head against the wall trying to figure out what direction to go after reading this thread. I'm looking for a closed headphone and ended up buying the DT770 (250ohm) and I'm not happy with them at all. I tried using them in a competitive setting (should have listened to the review, lol) and the bass is just too boomy to cue in on the little details in a game like cs:go. That being said, I'm pretty much set on one of the mad dog or alpha dog variants, but I can't figure out what the hell I want.
I have a bifrost/asgard 2 combo that would be driving them. My main question is is the alpha dog worth twice the cost of the mad dog? They'll be used for music as well and I basically listen to everything except for country. Then MrSpeakers went head and threw in the Mad Dog Pro to make the decision even tougher. Money isn't really a problem, but the alpha dogs would be far the most expensive cans I have coming from HD598s and HD650s.