Summary: I bought these thinking they'd be a better alternative to the IPOD headphones. Truth is, now I have more respect for the little white earbuds that shipped with my IPOD nano video.
These sennheisers don't live up to the name, and appear weak in every aspect of sound compared to the standard issue ipods.
Also, the buds on the sennheisers are slightly larger than those on the ipods .. so they don't fit in my ear as well.
Summary: but that's it, just OK. I wouldn't say they're any better than the iPod earphones. The bass is just average, the overall clarity is average. They're good for the price, however. And Sennheiser is a great company with solid products. I also own Etymotic er4 isolators, and they're far superior, but they cost well over $150.00. I guess for the price the MX51's do the job.
Summary: Very good entry level earphones and for the price probably the best. And for all the people who don't like IECs this is a very good option. Far far better than what iPod or creative mp3 players comes with by default. You must buy atleast these if not better ones if you at all care for quality in listening to music on portable players.
Summary: Der Klang ist ok, aber er ist leiser als der Originalkopfhörer der zu meinem MP3 Player mitgeliefert wurde. Ergonomisch guter Sitz, aber nichts für Leute mit kleinen Ohren. Für Gelegenheitshörer empfehlenswert, für Junkies nix. Dann lieber nen Euro mehr ausgeben.