Hey guys, I'm a bit of a newb to headphones and such, and need your advice on setting up a portable rig. I'm mainly going to use it in sit-down situations, and am looking for full sized open headphones and an amp.(already have the pcdp covered.) I listen to a little bit of everything, but...

Can anyone who owns/has heard this pair of headphones, tell me a bit more about them(i.e. small review)? I did a search for these, but there isn't too much description on them. How are the high's mids, and especially lows? I'm kind of looking for "boomy" headphones with deep bass extension...