During Teufel sound is crystal clear and extremely differentiated stereo, but unfortunately with decreasing frequency is getting thinner, I wanted to go with regard to the bass with the "Beats" on no. Safe. Although the are plentiful, but the beats are lacking for my taste at all frequencies of transparency; like hearing through a sock - unfortunately anything but crystal clear and stereo differentiated. Thus, the mixture of the two in-ears would be my ideal.
Addendum: have now "my ideal" found. If you are interested see my review on the Beyerdynamic DX 160 iE premium in-ear headphones.