Thank you very much gonna purchase them now. 

Would these be ok for jogging or running?

I own the X-FI HD USB external DAC and was wondering if I could use the s/pdif out on it to connect it to my fiio e11 with no problems?

ty sir

Noob question here :D Just wondering if it is possible to connect the E11 to XFI USB HD. Here is a picture of the XFI interface. 

Of the following two which one has a better sound quality. I use headphones :D Titanium HD http://www.newegg.com/Product/Product.aspx?Item=N82E16829102033 XFI USB HD  http://www.amazon.com/Creative-Sound-Blaster-System-SB1240/dp/B004275EO4