[SOLVED] Raspberry PI 2 + HifiBerry DAC+ freezing

[munich]

I just set-up a new raspberry PI 2 with XBian and a DAC+. I entered into /etc/modules
snd_soc_bcm2708
bcm2708_dmaengine
snd_soc_pcm512x
snd_soc_hifiberry_dacplus

aplay -l gives me:
card 0: sndrpihifiberry [snd_rpi_hifiberry_dacplus], device 0: HiFiBerry DAC+ HiFi pcm512x-hifi-0 []
Subdevices: 1/1
Subdevice #0: subdevice #0

BUT as soon as I choose within KODI -> System -> Audio -> ALSA: Default (snd_rpi_hifiberry_dacplaus Analog) the raspberry pi 2 freezes and I have to reboot it (turn off power).

Any hint, what went wrong?