I use ety hf5. Not necessarily high end, but not your ibuds, either.
Now, my impressions are based on the fact I am using etymonics, and dealing with their sound signature. I think it gives a fuller based to them (slightly and w/o bass boost), and keeps their definition and whatnot. With bass boost, you get a little smearing in the midrange to high bass, but not a lot. And you get an approaching normal bass response.
I change the bass boost depending on the song, and sometimes even depending on the passage, if I am aware of the music enough to remember.