Ok. Thank You Pete and Andrews. I solved the problem. It was enough to connect Aurender to Vivaldi Dac after having disconnected the option on the Aurender named Critical listening mode which does not allow USB signal. Other question if it is prefered ethernet ( not available on the Aurender ), USB or AES EBU. I know this is already discussed here but I cannot find it
With dCS L/B/R/V , DSD or high resolution PCM ( 176.4 or above) requires dual AES connection which, as far as I can tell online, N30SA does not provide. So USB is your only option.
I do not understand your reference to critical listening mode as this is equivalent to an “exclusive” mode which I associate with the use of third party sources such as a media player installed on a general purpose computer. So I cannot otherwise see its advantage to you if, as I understand matters, your source for both local files and streaming is the N30SA itself. Perhaps there is something more?
