-> Too much bass:
It is true that these are inear very intense bass. without equalizer in the player (whether mobile phone / MP3 player) it may happen that the music is played back to bass-intensive. I myself use a Samsung Galaxy Ace as a player. the standard software for music playback This smartphone has a sufficient EQ which allows you to adjust the headphones fit depending on music. I / hardstyle of quiet pop / rock than hard rock / metal to techno / trance everything possible hear, I can so that I think give a fairly reliable sound impression. I contend that the warning is exaggerated "too much bass" unless one is able to adjust his player reasonable.
-> The rubber attachments
the wide range was inear for me with a reason to buy this because 6 different sizes rarely included in the delivery. I have therefore always been ... to find a fairly small ear canal and trouble, not reasonable to shifting constantly headphones. with this problem now seems to be resolved, at least for the most part. However, what can not be expected is that those listeners can not move in all movements.
-> Usability
many want to use those listeners when the sport ... you can not expect, however, I think of such ear. gerae in transpiration (also around the ear), it can not be ensured in fact that the handset will not slip. basically you should seek rather headband headphones for sports activities ... I selbts used for the PMX80 from Sennheiser, which I can for jogging or in the studio warmest recommended.
-> Conclusion
I can due to the preisleistugnsverhältnisses definitely recommend this listener - I ultimately expect anything else, when I got - but the usual Sennheiser quality. 1 star deduction there despite my arguments above, however, the existing Basslastigkeit.