I've had my Sennheiser IE8 for soon 4 years and they still hold up decently, however its now the third time I've broken the L-plug connecter (lose connection). I've considered moving on to something new. I listen to a very wide range of music, but a majority of it is electronic based such as trance and dubstep but also listen to rock, heavy, pop and chill stuff.
The two IEMs that has caught my attention the most is the Westone W40 / W4 and the Westone UM 30 Pro. Their price range is about as high as i can go too. How does these compare to IE8, any other good alternatives to consider?