My opinions   Sound The sound produced by the HD558 is rich, a bit light, and isn't bloated with bass which is a good thing. It has a crisp treble and punchy bass, very great soundstage(expected from an open headphone) but sometimes the bass lacks. The great thing is this headphone will play any genre of music well, even from rock to classical(they play very well with classical).   Comfort The HD558 is very great for listening to music for hours. The velour pads very soft and comfortable, when you put it on, your head will still feel very...