Kerouac
Headphoneus Supremus
The E12diy gives me the power to change the sound signature without messing with an equaliser. And it's cleaner sounding than the HP out of the X5
I have been tempted by the e12 diy, but I haven't been able to find it locally in Melbourne so my wallet is safe for now, but I'm searching for it. I'm sold.
There's also one in the for sale forum...
http://www.head-fi.org/t/736568/price-reduced-fiio-e12-diy