I have just resided in Japan for my graduated study. I plan to set up a small set of full size for using in front of my PC. Normally I spend around 8hrs a day in a computer sci research laboratory. I have several limitations which are following I) There are a plenty of researchers who working near by me, so I couldn't use any open-air. II) The 8hrs a day make me unable to use a heavy or uncomfortable headphone. III) My workspace is not so large that I couldn't place a large amp as well as any much wiring. My hard-limit budget is 3000$ for a headphone, a headamp/integrated dac, and wires. I know that budget could set up a STAX set, which I dreamt about before I lived in Japan. However, The only one model of a closed-type STAX (4070) is too heavy for me (500g++) to spend my long day with. As much as I know, most of the in-market semi-top model are open-air or they are so heavy. Thank you very much. PS I) I prefer almost all of easy-listening music. (i.e., acoustic). Seldom listen to rock. PS II) My sources are a MBP and an iMac which I recently use with my DT1350 and twag-es3x.