IEMs for Prog Metal

Hi everyone!

I need your advice about some IEM to listen to prog metal, like Dream Theater, Opeth or Myrrh, and instrumental rock/metal, including Steve Vai, Satriani...(everyone that fits on G3).

I currently have the Hexa, but when I am listening to this kind of music, I am missing something... (however, they sound great with jazz, and specially "soft" jazz).