Does anyone have any opinions of the UE 900?

Where can you buy extra cables for the PFE 232. I rip a cable every 2-3 months or so.

and no amp required when using with a macbook pro or iphone

Oh yea, detachable cable is also a must for me

Songs I listen to: A Day in Life, Twist and Shout, Wild Honey   Clarity and sound stage is the main priority for me.   Here is a list of my current contestants. Feel free to suggest other IEM   Shure SE535 Shure SE425 Etymotic ER4 Etymotic HF5 Westone 4 Westone 4R Logitech UE 900

As the title says...

so what do you recommend. 

So what headphone do you recommend for me?

I'm living in Iran for the next 2 years so no real apple store for the next 2,000 miles. :(

I've personally heard a lot of great reviews from both but I still have no idea which one is the best for my taste of music. 

bump?

There is no specific reason I'm choosing between these two because I just narrowed these two for my tastes.   -Clarity -Sound stage -Replaceable cable -Songs I listen to: A Day in Life, Twist and Shout, Wild Honey

Price Range: up to $600

I'm not a bass-head by any means so detail is a priority for me. The fact that the se535 are more portable is a big bonus for me but also don't want to sacrifice sound quality. Also, since I will be listening in places like the library I really don't want any sound leakage.    Thanks 

I'm not a bass-head by any means so detail is a priority for me. The fact that the se535 are more portable is a big bonus for me but also don't want to sacrifice sound quality. Also, since I will be listening in places like the library I really don't want any sound leakage.    Thanks