i'm looking for new headphone, to replace my aging SHP805 that no longer can satisfy my ears, is budget around rm250 is good enough to buy good headphone? currently eyeing on audio technica AD300, is it good enough?

currently i'm using Lear le01 IEM and Xbrand (oem yuin pk2) hope to find better headphone and can suit me well

kinda song that i listen the most:
Jason mraz, john mayer, james blunt, james morrison,
sometimes:
lady gaga, santana