Hi Giuliomoro, I've returned to this issue with Kernel, ALSA, and CTAG. I've already tried to downgrade the kernel version to 4.4.155-ti-r155.
Then, I evaluate this: dmesg | tail -n 20 and that: bash -x ./load-ctag-beast-16ch-drivers.sh
and still, I can't assign the CTAG as a soundcard.
Do you have any suggestion on how to keep the GUI in Debian and to run up the CTAG on it?