Well deserved review of this excellent sounding amp.  

Great share, thank you,Ds

can't wait until my C5 arrives next week and i can listen up myself! great review, DS!

Would a fiio x3 paired with the amp sound better than the dx90? Thanks.

Thats a good question. I would have tried this if I had my X3 but I sent it to Fiio for battery repairs. My guess is it will sound much better than the stock X3 as even the E11K makes the X3 sound better. It will most certainly have more power than the stock DX90. I will try it out as soon as I get my X3 back .

Great review, I want one now!