Yeah I still using my ZX2 till today and I just match it with the new Fiio FH7s and its fantastic
Only if the device can work a bit faster haha especially on Spotify. I pray hard that Spotify please do not remove support for Android 4.x as I noticed I couldn't launch YouTube app as Google has remove support for Android 4.x so the YouTube app just couldn't work anymore...
Let's see how much longer can I hold on to this ZX2
.. if it does give way, then most likely will fall back to smaller and lesser complicated setup
a USB DAC for Phone maybe hahahaha....