I've been using this IEM for a while now and the foam tips are starting to fall apart. Where can I get some replacements? I checked their official website, it's 15+shipping for 5 pairs, a bit expensive imo.
found these two on ebay.
they don't seem to be matching the model I have, can I still use them?
A couple of other questions...
how often should you change the filters?
if you have a pair of Etymotic, which kind of ear tip works best for you?