Hi,

i am very happy about your answer :-).

Actually i have the focusrite with two inputs (micro and Guitar). And i want to record either guitar or voice at one time.

So your tip:
----If were me i would keep the focusrite as my main sound device in windows and biab preferences for recording and playback , and when useing the helix , thus, ...
Plug guitar into helix obviously , and then take line output of helix into line input Of focusrite.----

was the missing link for me!
I did it like that and now it works fine :-)))
This information helped me a lot.
Thank you very much and have a nice weekend
Rainer