Having followed A-T since 2005 from their introduction of the AT-20 Mics, they've always been different. But yes the 'Conditions' link are provided under their product page when you click on specifications. It's been like that for a while now.

Conditions have always been published on their site for these headphones: http://www.audio-technica.com/cms/site/172f2d8288f1a940/index.html

Figured I'd add some input since we recently returned these headphones (500 pro) a few days ago after a week of usage.  Mostly due to discomfort.    These are definitely marketed for the portable devices in that they are portable friendly.   I'm having trouble understanding why some...