Your rig: Toshiba laptop, with iBasso D10
Type of usage: Music
Format: 320k mp3, ogg, FLAC.
Genre: J-techno (mostly use HD25-1 for this), acoustic (mainly piano, guitar and sometimes classical), vocal (both male and female), some J/K-pop (again, mostly use HD25-1).
Type of headphone: Open-air, full-sized.
Budget: preferably < RM1000
Other requirements: Am leaning between HD598 and AD900x, but other options are possible. Detachable cable is an option as well.

Q701 might be over my budget, at least based on Malaysian prices.
But while I'm still in Australia, I might test that one too with a proper AMP/DAC (last time was with an e11, which IMO was still not enough to drive them).

Jaben has them, you can go there and check them out