So first of all I am very satisfied. It indicates to me nothing I would complain about. Critical is the fact that these in-ear earphones, compared to products in the same price class come across something very bright sound from her and that just though bass is tuned for me. It sounds more like as if someone had the equalizer preset "Ambient" or "hall" is selected. So I expected the opposite precisely because of these additional designations. But if you have no real direct comparison then you do not notice it perhaps ;-) Respectively you can optimize the equalizer a little there, yes. Conclusion: For this price a top product!