Sorry I don't use wired headsets anymore... My expieience with the previous S9 (I had them as well) is that the HD's sound much better, and calls are now in Stereo, and I believe the mic is clearer, but I wish it had all that fancy dual mic noise canceling technology...
I don't really find portable music high quality enough to worry over, but I was impressed with the bass the HDs offered compared to other small (not studio quality) in ear headphones from the past...