Guys, I recently bought a pair of Nuforce NE7Ms. However, the sound quality i have recieved so far has been nothing short of muddy. I think that a burn-in could solve the problem. NE7M users: how long did you burn in your NE7Ms? Thanks! Edit: I am using the foamies.

Hey fellow head-fiers, I'm not going to upgrade my IEMs very soon (but it will be sooner or later, trust me :P), and i've looked at 2 earbuds: Shure E3c and the Sennheiser IE7. Now, i'm in a dilemma on which IEM I should choose. I know Shure makes good earbuds, but so does Sennheiser - and...