After a long time experimenting with all kind of positions and insertions, up to the point of feeling pain, I have found that if I press the base of my ears with one finger, and the IEM with another finger, they sound good!!
It is a very precise position. The magic is gone as soon as I move the fingers one millimeter or slightly increase or release the pressure.
So, it seems that the problem is inappropriate sealing. Why I can not get sealing without pressing the base of my ears with the fingers? I do not think that my ears have a “special” shape, because I have been using Shure E3 during few years and I never had a problem with them. They either sound with no bass (medium insertion to the ear canal) or with full bass (complete insertion), but not like “crap”.
I would like to try other eartips, but I have received a plain RE-262 with no accessories and no box.
I have claimed to Head Direct and I am waiting for them.
I attach a picture of the E3, as a reference.
