Every IEM I own seems to do something well at the expense of doing something badly. Not unremarkably--badly. Either the low bass is piss-poor (Ety 6/6i, UE super fi 3, RE2, Custom 2), or the high treble is piss-poor (Altec 326, Denon C551, Senn CX500) What will I have to spend to get something that's at least mediocre at everything? I would rather stay under $250. Otherwise I can scour the classifieds for a used high-end rig.