I believe in isolation, but also letting the iem breathe...really any iem. this is why i prefer double flanges. they may not isolate as well as comply foams, but that is also a good thing. the comply foams isolate, but change the sound for the worse IMO. double flanges allow breathing room/space and can really bring out the best in an iem. personally i use the given double flanges from sennheiser.
9/21/14 at 2:21pm