I got home a bit earlier and have been listening to the X5 through my Flat 4 Suis.... I love this player. Sounds very good. Fiio surpassed my expectations. Silky smooth sound. Spacious, detailed, slightly warm but on the neutral side to my ears. Just love the contrast and texture of the sound. Separation is good. Vocals really stand out for me. Very natural, easy on the ears yet not rolled off or overly smooth. Very well done Fiio.
The build quality is also pretty impressive. The unit feels sturdy and well put together. A substantial amount of this player consists of metal. The UI is easy to use and functional. It's pretty quick.. Love the scroll wheel. I am a bit disappointed in the rubber/plastic tabs used to cover the micro SD slots. I feel with use they probably will break off. Then again most players don't even have a covering for their SD slots. But something like the AK series would have been better. I'd still purchase a unit even with this flaw. The sound more than makes up for that :).
The accessories are a bit novel. They actually give you 3.5 plugs which you can use to protect the ports you are not using. Quite smart indeed :). There is also a usb stick included (I'm not sure if that has HD music on it or not?) along with some extra screen protectors, a usb plug and some sort of makeshift plug (guessing to be used with the LO or Coaxial?). The included rubber protective casing is a nice touch. It will help to keep the player in great shape and you don't have to break the bank purchasing a case.
I wasn't planning on buying anymore players but I honestly think I will be grabbing an X5 for myself to use on the go :).
Happy to hear that you like it. Sounds like it may be as good as it's bits. It's a really nice topology and I'm a fan of the DAC chip they use for this sort of purpose. Didn't mean it would swing but apparently it does.