too bad this thread is so calm and there are no alternatives! I have recently received ALO cv5. It is just shockingly good amp. It turns my Fiio X7 like 4-7 steps up in quality in comparison with am1 or other amps I ever connected to it. Anything I have heard before just sucks. The amp is the wonder. I started to love the music again, since I was satisfied with Colorfly C4 Pro few years ago. Tube does make wonders. It brings to the music life...naturality...inspiration and immaterial beauty. Drives beautifully anything from iem and light headphones to tough and high ohm cans and earbuds. Cannot be more happy with the little device than that. IMHO it is better than Chord Hugo (though auditioned it shortly) and any dac\amp available on the market before 1400$. Please guys, share more your impressions! P.s: Phatlab introduced next generation of amps!