Why alsa of AlloBoss DAC 1.2 must be HiFiBerry DAC+ HiFi?

Hi

Does one of you know why to use on volumio 3.x the “AlloBoss DAC 1.2”, it is needed to use the following Dac model of the popup list => “HiFiBerry DAC+ HiFi” and not “Allo BOSS” or “Allo BOSS2” ?

Volumio log reports such a message when I try to select “Allo BOSS” from the list

Dec 02 10:42:56 volumio volumio[805]: warn: Unable to locate the audio output device Allo BOSS. Please configure a valid output device.

Cheers

Charles M.