Some good news too: the DAC function on the X3 works out of the box in Linux now.
Seems that the newest Kernel picked it up just fine, but there are some things to do to unlock the full potential of it. I'll write you the steps below, so if you want, you can tell your other customers:
1) open a terminal
2) view the current settings of pulseaudio:
pacmd list-sinks | grep sample
this will propably look like this:
sample spec: s16le 2ch 41000Hz
sample spec: s16le 2ch 41000Hz
3) modify the daemon.conf file in /etc/pulse/ for high quality:
- open the file with an editor as root
- look for these lines:
; resample-method = speex-floar-1
; default-sample-format = s16le
; default-sample-rate = 41000
- change them to that:
resample-method = src-sinc-medium-quality
default-sample-format = s24le
default-sample-rate = 192000
4) restart pulseaudio:
pulseaudio -k
pulseaudio --start
5) check the new settings
pacmd list-sinks | grep sample
now it should look like that:
sample spec: s32le 2ch 96000Hz
sample spec: s32le 2ch 192000Hz
Finally go to System Settings and give the X3 a higher priority in the hardware list, so it will be picked up after it is hooked up to the computer.
that's it! after that procedure the X3 will be able to work as a DAC with it's full potential.
