I had to finally put my Shure E4Cs to rest and have been on the search for months to find a replacement.   I like sub bass and a balanced sound and value build quality. My Shures were built tough but they lacked top end and a little weak on bass. They also had no player control or mic.   I've never had to deeply insert tips with headphones due to the shape of my ear canals so when I got the MA750's I took the same approach.   I went through the range of tips 4 or 5 times trying to find a set that would work. None did - I got the typical issues...