Hie i am currently using my iphone 3gs

I am going to buy 1 headphone from the list below

Beyerdynamic dtx 501p
Klipsch image one (ii)
Akg k450/451
Bose ae2/oe2

So i will need some help to get some players.

I have in mind some basic B series Sony mp3 player
Is it ok??.... dont have big budget for it but i guess around RM200 is fine

The Beyerdynamic goes for 3++ and and the AKG 4++ and the Klipsch 600 and Bose 600.

Should i go for the cheapest earphone on the list and get a better player? or should i go for the Klipsch or Bose and get the SONY Bseries player.

or better not just stick with my 3Gs?

Need sifus help here.