These are, without a doubt, my favorite headphones I've personally listened to. They are super comfortable (I can listen to these things for hours without any fatigue), really easy to drive, and have amazing build quality. My listening consists of MP3 320 from my laptop>FiiO E07K>Philips Fidelio X2. I have also tried them with my iPhone 6 Plus and it seemed to drive them fine.   Sound:   Like I said, these are my personal favorite headphones. I think they sound great throughout the entire frequency range. There is actually a surprising amount of...

I decided to purchase the new model UE 900s instead of the UE 900 because of some build quality changes and added accessories.      Packaging - The packaging is very nice and they fit a lot into the fairly small box. Everything is quite elegant looking   Accessories - There are tons of accessories. There are many sizes of silicon and foam eartips to choose from, including spares of each one. There are 2 different headphone cables (one with a mic and 3 button, one without), a hard carrying case, and some connector cleaning gel   Build quality -...