I just received mine from China..
A few issues coming straight out of the box :
1) My 1Tb sandisk Micro Sd seems not working with the Kann Alpha (Though they're working perfectly with Dell Notebook, Windows working station, Sony WM1A, Fiio M11) It's even impossible to format it with the Kann Alpha.
2) Impossible to download playlist on SD with Qobuz, but I knew it before my order.
3) Impossible to be a DLNA renderer controlled by (mconnect/foobar/..)
4) Parametric equalizer is like a joke ... 10 fixed band ????? and very limited parameters +/-5Db, 2.0 to 4.0 Q... I hav never seen such limitations and that makes it almost unusable as a PEQ.. it's better to use the Graphic Equalizer
5) No possibility to use a better android reader like Neutron Player (available on apkpure)
6) Police are fixed and rather very small in some case
7) the top part went away after a while .. Glue was not strong enough
I have lost several hours today for these tests (it took very long and I got a headache with the 1Tb micro SD).. I still have to test Toslink output to connect to my external M500+THX887, compatibility with some android Bluetooth remote control, .... etc
Luckily some very good points are there :
=> Power can clearly drive the Heddphone by Hedd,
=> Connection with my Synology NAS seems to be fully functional with AK Connect and comfortable
=> It's working rather fast
=> Qobuz is working fine (just impossible to download enough playlists)
=> luckiliy the GEC is applicable to Qobuz or Synology NAS Media station
Luckily, I ordered the Kann Alpha fore these last features to be free at home... but I don't expect to travel with it (anyway Heddphone is unusable), not being able to use 1Tb sandisk micro SD is just a major issue in 2021.