Had two of them as work phones, the sound wasn't bad, better than on my one x (which got pleasantly loud, but was colored). The bad thing was that the headphone jack broke from both... Also loved how you could get 16+64gb of memory on...
Beyerdynamic DT-880 Pro (250 ohm): Still my top reference, highs are dominant over mids, good bass for a semi open.
AKG K121: cheap, sturdy and comfy for casual listening.
Koss Porta pro: this one is here for its great...
