Hmm, doesn't seem to have wax built up on both of the sound holes, but it seems like there's a green/yellow foam on the left hole and none on the right hole. It has been there ever since the beginning. 

Sorry if this has been discuss before, I did a search and there wasn't any thread that discuss about this, or I could have mistaken it.   I've brought UE TF10 for like 3 months and over time, the highs seems to be flatten. I need to adjust my Cowon J3 EQ settings to get back the crisp highs...

I've removed the tips and tested the earpiece again. Still it sounded different. Anyway, I've sort out with the person who sold to me and get a replacement. Hope that this is the last replacement.   And I thought this is a feature for high end IEMs. Zzz. Noob me

Hi guys I'm new to this forum, so try not to flame me that much.   I've just got my TripleFi and notice that the left and right earphones sounds different, the left sounds muffled whereas the right sound treble-like. Is this the way it suppose to work or faulty?