I'm thinking of upgrading my 3/4 years old Etys ER4S: budget about £300.
No headphones but only IEM.
Isolation is a must, as well as ability to use them unamped with my ipod classic.
All in all I like the ER4 sound signature, being a fan of electrostatic headphones. Musical preference is classical, mostly chamber and vocal
So far in my short list:
RE-272 or 262
SE-535 (but can I wear them with glasses?)
Any help is appreciated.