The sound is in favor of a "mini headphones" good. In the bass range of Sennheiser sounds very lush, which accommodates many MP3 players. Still sound even audio highlights like Paul Simon's 'Graceland' enjoyable course. For use on the stereo system, I prefer to remain large, circumaural ('circumaural') handset with a longer cable. The Sennheiser contrast is with 140cm cable and small size my new favorite on the laptop or MP3 player. You have to just be aware that the open system can participate in the environmental involuntarily on listening. Who does not want, should look at the 'closed brother' PX 200. In this price as the weight class PX 100 is in any case a very clear recommendation.