what is a good combination with iPod Nano 5th?

[jehag]

Hi. I am jehag from Holland and I am new here. 
I especially joined because I need some advise from people who about these things.
 
I have an iPod Nano 5th (with the video camera) and generally use in-ears. But I want to buy some lightweigt on-ears too. Don't want to spend more than, let's say, $150,= 
I almost always listen to classical music. I don't like the idea of carrying an extra amplifier. (Gosh, I didn't know this existed...)
 
From reviews on this forum I read that the Nano5 is not particularly strong in the bass, and I must agree, but I have no idea if this is because of the iPod or the in-ears...
 
What is it that I need to look for or keep in mind? For I heard people talk about impedances and power and idonowhat, and when searching I was surprised that the iPod Nano 5th was  nearly the only one that is not recommended for use with a Sennheiser PX 100 - II   But almost all other iPods are! No idea why.
http://store.apple.com/nl/product/TX783ZM/A?fnode=MTY1NDA0Ng&mco=MTY2OTM0NDU&s=topSellers
So then I decided to ask some guys who know how to choose.
 
Any light on the subject would be most welcome.
 
Thx!
 
 
 
 

 

[ZARIM]

The Ipod Nano has line out function through dock connector and external AMPs(Fiio E11) use will gives better sound quality, clarity and high resolution in music than HP jack. I will recommend the Klipsch Image ONE, Poineer on ear, JVC on ear and Jays on ear headphones.