Originally Posted by AppleByter
I currently have the Etymotic Research ER4's and am very interested in hearing your opinions on the differences between them and the UE-10's, both in terms of sound quality and comfort. I use the ER4's for noise isolation on long flights and also for mixing sound recordings. I don't have ear molds for the ER4's.
No question the UE10's sound better. Better bass. More dynamic.
I HATE the way the cables hang from the ears or need to be tucked behind. I personally find that very uncomfortable.
I would recomend you get the custom ear molds made. It takes some effort but is worth it.
I also recomend you are really careful as the ends of the er4's EASILY break off. I have broken 2 pairs already.