[Ope5]

Hello. I know, there was a lot of threads "like this one", but I'd like to specify my preferations a little more, if I may.
So, stuff:
I had MEElectronics M9 and 2nd gen M9P earbuds, they were just about right.
I loved the big scene, the price, the bass, the shape was just about fine, the bass was bearable. They sounded kind of inaccurate, had a tiny bit of background noise to them, just mediocre quality sound is what I mean.
Both of these pairs got their wires torn just from regularly having them plugged into my Sansa Clip+ and fixing them resulted in that repeating.
I once or twice listened to my friend's Koss Porta Pro headphones and I liked them, although I'm not 100% certain of their bass quality (only listened to MP3 files on them). I even consider buying them if I don't find any buds suitable for my expectations.
 
So, expectations:
-Bass, more than natural, strong sub is a necessity
-Fairly clear sound, as I already hurt my hearing with cheap headphones and MP3 files :\
-whatever requirements Rockboxed Sansa Clip+ has for (? dunno if it's the right word to use there, haha) the buds
-In-ear
-Considerably durable
-50-60$ is a good price, but there are some weird shenanigans associated with pricing in my country, so sometimes 80$ could mean the same as other's 50$. Just throw stuff at me in the ~50$ price tag
-Koss Porta Pro's sound in earbud form is about what I'm looking for
 
So yeah, I'm looking for some obscure finds avaliable in Europe.
 
Thanks!

 

[Nnug]

I know it's a bit above your price range, but the XB90EXs are bass monsters with a filthy sub bass too, and extremely durable too

 

[JK1]

There is the XB60EX.

 

[Ope5]

They seem cool, but can't get them where I live too easily D:
Thanks though.

 

[Nnug]

You could maybe try the classifieds?