I thought I had a good thing going. I have a IPOD and loved it for years. I have this small inline adapter (Fiio E1) which really brings out the IPOD sound. Then a friend of mine gave me this Sandisk Clip+. WOW! the sound blew my ears off, I ripped my Bose ear buds out and reconnect to my IPOD then back to the Sandisk. Beautiful sound out of such a small device. So I grabbed my Iphone4s, same thing. Grabbed my son's Sony MP3 player. It is truly unbelievable the Sandisk Clip plus was noticeably deep clear bass and crystal highs even insturements I've never noticed in a song. This thing is better then anything I've put in my head. I just had to share with the group.