I'm looking to upgrade from my Fiio E5 portable amp, either to an iBasso D2+ or the Total Bithead. I currently use an LOD with an iPod touch, and the headphones i use are the audio technica es7, esw9, and ck10. Sources are 320 mp3's on the iPod, and a mix of 320/FLAC on my PC. So I have two...

I have a quick question. I'm currently using a pair of audio technica ES7's with an iPod Touch 4, and I love how they sound. Would using a Fiio E5 make a difference at all? I've read several reviews but found no definite answer, and was curious if someone had done this with a similar setup...

I'm looking to buy a set of portable headphones (cans, not in-ear) with decent sound quality to wear on the way to school and walking around campus, studying in the library, etc.  so I obviously would like them to be portable, and folding would be a plus (but not necessary). Comfortability is...