I am waiting for my first Senn MX 980 and have read most posts about Senn MX 980 in this forum.  I found that some people said that MX 980 would need an amp but others said that they run their MX 980 unamped.    I listen to my iPhone, iPad, or notebook PC a lot.  Do I need an amp for it?  If...

I read somewhere that MX980 needs an amp but IE8 doesn't.  Do you listen to them amped or unamped?  I listen to my iPad or iPhone a lot and so I am looking for one which doesn't need an amp.

thanks! what do you mean by +shure olive ? Doesn't Yuin need an amp? I use it with my iPhone and want something w/o amp. How about Sennheiser MX980 and IE 8 ? now I am considering anything under $500.

Do you have a recommendation on "comfortable" earphones under $500? I tried Ety HF2 and had to return it because it was too uncomfortable. The sound was fine but I couldn't wear it long. This is the first time I used in-ear headphones. In-ear may not work for me.. Maybe should I get earbud...