Would I be right in saying ‘Output Channel A’ is Deck A, and ‘Output Channel B’ is Deck B? So I set ‘Output Channel A’ as L: Out 0, R: Out 1… and ‘Output Channel B’ as L: Out 3, R: Out 4? Then I take the RCAs from Output 1 on my soundcard and whatever line it is put into on the mixer will be Deck A? and the same for Deck B only with the RCAs from Output 2 on my soundcard?