I guess I have to add, again, that with the OEM tips, mediums, the DBAs were hissing like a snake, and I was concerned. Switching to a deep insertion tip, in this case the Ety tri-flange (and the Shures work just as well), I never, ever hear a harsh sssss sound in any tracks, even the ones that are 192 rips/downloads, higher volumnes, or on my weakest source (which is the Clip, in my view). Anyone who is having sibilance problems just need to at least try this workaround. And the way the DBAs insert, they are very comfy even with the tri-flanges, which is not the case with all IEMs.