Etymotic earphones and headsets have special filters that smooth the frequency response and prevent ear wax from entering the earphones. Dirty filters reduce or block earphone output. Changing one or both filters can often restore sound.
The first thing to do when earphones sound weak or inaudible is check the filters.
NOTE: Filters are not reusable.
Replacement parts can be ordered online: Click here to view Accessories
Filter RemovalNote: Use the tool to remove the filter.
Filter ReplacementNote: Do not use the tool to replace the filter.