I just got in my dt990s along with my e09k (which I am not to confident about) and e17.  I love my 990s as they sound great.  I think I now would like to find a good pair of closed back headphones to pair up with the e17 when I am out and about or in a public setting.     I like the sound of...

I just received the dt990 pro 250 ohms and FiiO e17+e09k combo that I ordered.  I seem to be having some issues though.  I have the e09k plugged into my computer via usb, e17 docked, headphones plugged in, and can power on the device.  I can hear audio but only for a short amount of time...