Hi SIFUs, wanting to venture a little bit into the audiophile world but don't know where to start. Can anyone give me suggestions for a decent headphone with infos as below?

Rig - Planning to get a portable music player. Now listening on PC and iPhone. Recommend for a newbie as well with budget no more than RM1k
Usage - Music
File format - FLAC or DAC (Not sure if DAC is the higher format for FLAC)
Genre of music - Jazz, Pop, Vocal

Headphone - Please recommend
Budget - Around the price of a Beats Studio v2. RM1200-ish? Beats are overpriced IMO so...
Other requirements - Over ear with sound isolation. Bass with crisp vocal capability. Best if there is something that acts as a mute button like the Beats Studio v2 has.