I've been doing research, but seeing as how this will be my first step into higher-end headphones I thought I'd post. I've never heard open headphones before and to my knowledge there aren't any places local to Birmingham, AL for me to audition headphones in general. There's a local Guitar Center with the DT 770 Pro 80, but they don't have listening stations setup for health code reasons (understandably). Although, they do offer a 30-day return. Max Budget: $275 Listening Habits: Classical, Electronic / Dance (mainly Trance, Ambient, etc.), Progressive Rock (mainly Dream Theater - my all-time favorite band), Talk (mainly podcasts), TV (mainly through my Slingbox), Movies, Gaming (mainly World of Warcraft); I do like music with bass, but I don't want it to be the only thing. Amp: Based on reviews I'm going with the Fiio E10 Source: 100% Computer using iTunes, MOG, CDs; Right now I have a MacBook Pro and Windows 7 PC at my work office. I run a line-out from the MacBook Pro to the line-in on my Windows 7 PC. This allows me to use one set of headphones (currently some inexpensive Sonys) to hear sound coming from both computers at once. I do have an iPhone 5 which might become a source (but not in a portable sense). I prefer closed, because my primary listening area will not be in a solitary and/or completely quiet environment. I'm a systems / network admin / programmer for my department. Our area (just IT) is in an open space with my boss sitting about 20 feet away who likes to use his computer speakers to play music that's not bad, but not my cup o' tea. I'm surrounded by the hum of computer fans. I'll also be listening for long periods of time, so comfort is a plus. Here's what on my list (strictly based on research and no listening tests): Audio-Technica ATH-A900X Beyerdynamic DT 770 Pro 80Ω (Would the E10 power the 250Ω sufficiently?) Beyerdynamic DT 770 Limited Edition Ultrasone PRO 750 I'm currently leaning towards the Beyerdynamic DT 770 Pro 80, but I just wanted to make sure there's not something I'm missing before laying down the money. Is there a big enough difference between the DT 770 Pro and the Limited Edition to warrant going with one over the other? Thank you!