THANKS!
My post meant to generalize theoretically utilizing balanced or RCA connection between digital separates regardless of brand/wire quality and get the idea of advantages/disadvantages using one to another specifically in digital domain. My analogue in/out domain is fully balanced except phonostage and that's where I would less likely switch to unbalanced RCA even for the short wire runs.
Jitter is one of the issues I want to minimize since especially on the higher frequencies I can hear things different from real sound such as hissing, whistling and sometimes inconsistency especially if compared to the vinyl version of the music.
From this discussion I realized that technically the difference between both connections should not be subtle.
Thanks for all your contributions.
Mark M.