There's something I have been wondering for a while that I'm curious about.
For BA IEM's, price is usually reflected in the number of drivers.
For example: Shure 315/425/535 price raises was the number of drivers increases
Same with Westone 1/2/3, SM1/SM2/SM3, UE 600/700/TF10 etc...
So what about the Senn IE6/IE7/IE8? I understand why the Shure 535 is more expensive than the 315 and 425, mostly because
it has more drivers. But what is it about the Senn IE8 that makes it retail for almost $300 more than the IE6? Both are single dynamic drivers, and unlike say the Final Audio Design's dynamics that have different metal housings, they don't seem to be built with particularly different materials.
So my question really is, if more drivers, in general, reflect in more expensive BA IEMs, what's different about the drivers in premium dynamics?