I have an HTC One S as my portable source.

What did you end up doing? I'm planning to buy a pair of se535 and I'm checking to see if I need be cables or a portable DAC to go with my phone as well. Thanks.

Thanks for the response. I believe I have narrowed my choices to the IE80(I can get them for $290) or the NAD Viso HD50 (around $200). How would these two compare?

Source- HTC One S phone. MacBook Pro, IPod Requirements for isolation:will mainly use at home and outdoors. Will not use on public transportation. Preferred Type of headphone: I was interested in getting a pair of IEMs due to thier portability. I also like over the ear. I don't want to lose...