Hey there! I managed to score a cheap AKG 701 off a friend, and I'd like some recommendations on a usb amp/dac combo.   From lurking around threads I've seen people recommending the E7 and the uDac - I'd like to keep it more or less around $150 for "best" balanced amp/dac

I've been using a 16gig psp 1000 with cfw these past two years(plays flac nicely), and it looks like its finally at the end of its rope. I'm looking for something that is under $300, preferably having wifi and over 16gigs of storage, wifi is not really needed, but would be a nice addon...