Hello people! I am a EDM/Trance/Progressive House listener from Turkey. I actually listen all type of music but mainly EDM. In addition, I have just started my first job. I have been searching for a solid headphones (over-the-ear ofc) for a while now. And couple of days ago I've encountered with this amazing website with members knowledgeable about this stuff. Although I have searched through the Forums, I couldn't decide what to buy. Here is what I am looking for; A solid/quality pair of headphones I need to be able to use them in office so I believe they should be closed-back, correct me if I'm wrong I 'mainly' listen EDM/Trance/Progressive House, however I will use these headphones for other music types also, classical for example I will plug them to my computer, also to my phone/ipod I'm a big Sennheiser fan!!! So my priority would be going with a Senn if the difference is not huge. From what I searched I have encountered two headphones Sennheiser HD 598 CS and Audio Technica ATH-M50X, and some . I also know that their Impedance and Sensitivity levels do not require AMP/DAC. However, considering my battery on my phone/ipod may not be enough to sustain the headphones for some time, I thought I might require an AMP. Additionally, considering the type of music I listen to I sometimes use higher quality formats (FLAC etc.) so I also thought that I might require a DAC. I am aware that I didn't mention about a price range, it's not a lot (I cant do around $500), and more importantly I saw that as the price increases the headphones you can buy turn into open-back ones. These are my thoughts only, I am not an expert, otherwise I wouldn't ask you guys )) Please help me figure out this issue, Many thanks in advance!!!