I haven't posted here because I've been busy with school, but I really like the X5 and I really don't want to ship it out to TekeRugburn. I'll have my review as soon as possible (But next week is midterms week, so I may not be able to get something up any time before the week after the next). But for those that are impatient, here's a short little ditty: I'm buying one. Not necessarily right when they come out because I want to wait for Fiio to iron out any kinks before giving them my money, but this is the first non-iPod DAP that hasn't made me want to throw it against the wall (I've had the worst luck with cheaper DAPs and Sandisk has too much of my money from players that just choose not to work after a few months). And the fact that this can drive my ZMF T50RP well enough to actually be as entranced as I can be from my home setup is enough for me to wince once at the price and finally end my DAP search at least for a while. I just wish that Fiio allowed for replaceable batteries because I don't want to have a $350 paperweight once the battery starts to fade. But knowing me, I'll probably end up selling it well before that happens.
The only huge negative was that for some weird reason, the X5 didn't jive with the HD650 at all, like it sounded better and more controlled unamped from my Note 3. But this isn't exactly typical X5 usage.