I am using Aune X1S as my DAC/AMP for two years, so far so good. I used it to power my Fostex T-X0 and Sennheiser HD6xx headphones. I think the latest version of Aune X1S is currently available on drop.com.
Not sure but Creative G6 met your requirements where it also offer a microphone input.That is outside my budget unfortunately.
I am deciding between Creative G6 or Fiio K5 PRO.
Any preferences? Are Creative still not to be trusted?