These just arrived and I've had a quick listen.Bass not as powerful as the B&W P7 but lovely mid range and top, perhaps the B&W's top - though not as pronounced as the Sony - is a little silkier.
Anyway, well worth $100 in my opinion.I like the stretch cord, cord is a little over 3 feet long with the stretch part right in the middle so it doesn't get in the way.
http://kenrockwell.com/audio/sony/mdr-7506.htm
