VIRUS > Interface > Sound Card
 

would it be possible to send the Virus TI's analog outs to a recording interface (like the PreSonus FireStudio Mobile), then to the sound card via S/PDIF, all keeping the analog signal unchanged? Reason is, I have great A/D convertors on my sound card but have no way of connecting analog directly. Can the S/PDIF retain the analog signal's quality?

I don't think that you are making much sense here. The S/PDIF is a digital signal, so you wouldn't be using the ADC on your sound card if you are connecting to its S/PDIF input. How does your sound card have an ADC on it, yet no analog input?