I'm a years-long lurker coming out from hiding, and this is my very first thread (so please forgive me if this is a dumb question)! Thanks in advance for your patience and help.
First, my audio-snobbery background: I have a small budget so all of my equipment is around $100 or less. I own Ety HF5s for on-the-go listening, paired with an 8GB Sony NWZ-S544 piggybacked onto a Fiio E11. For at-home listening, I have a Fiio E7 (not E07K) powering two cans: Sennheiser HD280 PROs and Grado SR80is. The Grados are by far and away my favorite and I've grown very attached to them. When I hook them up to my portable setup, they really shine. My musical tastes range from electronic to classical but I tend to concentrate on the alt and indie genres. My music library is mostly 256kbs and up mp3s and lossless WAV files.
I've recently decided that I need to purchase a new DAP, since my old portable setup just doesn't have the memory to suit my needs anymore. 8 gigs just won't hack it when I'm looking at over 20 gigs of partially lossless stuff I want to play on the go. I've resolved to break out of the $100-and-below price bracket (I want better SQ as well as memory) and I'm prepared to spend $200-$300 on a new DAP. I've been eyeing the Fiio X3, which seems like a good value-for-money (especially since it comes bundled with a 64GB SD card for $220 from Amazon). However, I'm apprehensive to buy it because I'm not sure how it will pair with my Ety HF5s, which I will be using the most with whatever DAP I eventually get. I know that the HF5s have a predominantly analytical sound whereas the X3 is described as having a warmer tone. I'm afraid that the two won't play well together and I'd appreciate any insight on whether combining two different sound signatures like that is advisable. I'm also a little concerned that the X3 might be too good for the HF5s and if I'd be wasting the player's potential on an inferior IEM.
Finally, if I'm missing any great DAPs in my price range feel free to whack me on the head and tell me about them. I'm open to any and all options, except maybe an iPod.
I thank you for reading and for your responses!