In a head to head battle over at Enjoy the Music, the Shure E4c gets slapped around by Ultimate Ear's Super.fi 5pros:

"So my initial impression from this very demanding track is that the Shures will make you sit up and listen, while the Ultimate Ears present a more sober and solid picture, offering much greater bass and midrange presence, which will make for better long term listening. Switching rapidly from one to the other left me in no doubt. The solid bass of the Ultimate Ears makes the music seem far better balanced."

With the Shure at $299 and the super.fi 5Pro at $249, we're looking at a pretty solid win for Ultimate Ears...interesting, though, considering we covered an Earphone Shootout from Extreme Tech which puts Shure as top dog. But, you know, Extreme Tech isn't exactly your regular audio publication...

Shure E4c Versus Ultimate Ears Super.fi 5Pro [Enjoy the Music]
Ultimate Ears
Shure