That’s an interesting idea, but I don’t have such units. I checked my Hi-Fi and although it does have some phono inputs for tape etc, the handbook specifically states that you cannot connect a turntable because it is not fitted with a phono preamp and thus an external one is required.
For an experiment today I did actually record an album to Cubase through the Fireface, and although the levels were fine the recording has distortion. Hopefully that is why I need the phono preamp!