Can a 75 ohm digital rca cable be used in place of a regular rca interconnect?


I have a Harmonic tech digital cable (copper) thats not being used. Im using a blue jean rca cable from my receiver as a preamp to an external amp for a center channel. This cable is of more quality but not sure how these type of digital 75 ohm calbes work in place of a regular rca cable. 
deanshias
There was a time when I use to use a Nordost RCA Valhalla cable as a digital cable and it seem to work fine at the time. At least until I was able to save up for a real digital cable. 
I'm thinking more the other way around. I want to use the digital rca that I have in place of an rca.
You can use your digital cable as interconnect.

I did that yesterday.

My regular Audio Note interconnect got some hum due to some internal issue.

I had replaced it with Silnote Audio Morpheus digital cables with good result.