I just don't get this whole headphone review mindset of "these are great b/c of the ultra flat freq response". Flip side...these are fantastic because of the warm "fun" sound they portray...far from a flat response, but very desirable. So which is it? I hear people who praise the flat sound say..."those are great...a really warm and fun sound" about something unflat. So basically what I guess I'm asking...if you get a really flat freq...and that's what you're really wanting...when you listen to them, is it not fun? Critical listening...a term I don't quite get, I suppose. You have to be alert to enjoy these excellent cans. The flip side, these cans have that "fun sound" that you don't have to really be 100% alert and can just sit back and "chill" to. Help?