Having broken the cable to the base of the jack and at the same time making a fart membranes of headphones I bought others, and there I put them in my ears and surprise, the sound is not everything quite the same, not enough bass and too much treble in fact I noticed that rubbers are not the same quality as my old, so I put the old rubber and then the sound becomes excellent, there are those unfortunately come with bad rubber, but otherwise the sound is superb, the tips make all the difference ..