question about Balanced signals.

@atmasphere Thank you for the xlr cable suggestion.  I too like to save money and even if on short runs, an unbalanced cable is able to sound "clean", that cable is likely to be much more expensive to get similar performance to the balanced path.

audio-gd responded that "The preamp convert the SE input to balanced output.".  

without getting into the weeds, it seems there is one highly desirable outcome of balanced/differential circuits.  A balanced cable will have less noise, giving a higher signal to noise ratio.

@dukebdevil There are other advantages too- for example, differential amplifiers are more immune to power supply noise and they will have, in theory, a 6dB better noise figure than the same circuit executed single-ended. 

@atmasphere  sorry was trying to sum it up without going into details (because that is where we tend to make our technical mistakes).  In this last post, I should not have said "cable" .  As you clearly are aware, it is the whole design that contributes to less noise relative to signal (conversely higher signal to noise ratio).

@dukebdevil I got that. I was pointing out that in addition to the cables, there's a benefit in the electronics itself if fully differential and balanced.