I am trying to upgrade from my Klipsch S4 earbuds since they're kinda beat up and I'm able to listen to music at my new job. I was thinking about getting the Shure SE215 but I'm not sure if I would really notice much of a difference in sound quality. I was also thinking about the TripleFi 10 but...

I'm hoping you guys can help out. My ATH-M50s were cutting out a bit on the left side when I would jiggle the cord at the plug so I replaced it with replacements I found at RadioShack. Only problem now is the part I used was apparently of really bad quality because it won't fit into a standard...