Iphone 4s. Do phones differ alot for source? Will look into those iems you suggested. Another question is does it really make a difference for ciems vs iems. I've never had eartips molded to my ears before. And the thing about the number of drivers/burn in time/cable quality. Are they really...

While on the move it's from my phone. At home i output my audio via my audio interface (saffire 6). Tbh i didnt get an amp due to size (Hard to hold in hand etc), not sure if there are small ones. Are the er4s similar? Would look that up.

Nope i do not. Havent got to use any amps etc.

Yes i felt the shures were too "bassy" I would think around 800-1000?. But of course lower wouldnt hurt.

I've been through a few iems and am thinking to upgrade to a higher end one. Used the beyerdynamic xp series, shure 215s, and etymotic hf3s. My fav was the last one. Least fav the shures. Thinking of ciems next. Any ideas? Price shouldnt be a problem, but stuff like jh roxannes are obviously...