after about 75 hours of burn in (well a good 10 hours have been "on-head") I think these A/250's are starting to ease off on the top end. I thought they were very bright during earlier listening, but they seem better (or I am getting used to them). Definately not as smooth as my K601 or as easy/rolled off as my HF-1 w/ Flats, but reasonable.
After more use, I changed my mind about comfort. The lack of rotating cups make them kind of annoying after a while and they pleather pads make you sweat. With the weather in the 100's (average indoor temp in my place is between 85-89F) the last few days, I have noticed that headphone listening in general causes sweaty ears, but the A/250's are especially bad.
I almost feel like I should see if someone would want to trade these for their K81DJ's, but at the same time I am not sure I want to let these go. I know I could really use a sealed can, but maybe I should just get them separately...though I already feel like I own too many headphones (might not be normal for a HeadFi-er).