Getting back to the OP's question as I read it....
Unbalanced out to balanced in ( with an adapter) is quite simply unbalanced. Balanced lines have two cables, operating 180 degrees out of phase (push-pull) . The balanced input essentially measures the difference (sums them up). The big advantage is that any noise that is common - like noise picked up from RF interference or 60 Hz interference, ought to cancel.
If you run only one of them, its exactly like the unbalanced.
One caveat - this assumes that the amp’s in is true, inherently balanced meaning there is a differential input and you use either all or half of it. In this case you would incur no additional conversion circuitry. Sadly, more than half the unit I have seen actually convert balanced to unbalanced and then rn through the normal circuitry. In this case, unless you have a noise problem, balanced is inferior unless you actually like the distortion another stage gives (admittedly small if well done, but in theory, its there).
So bottom line - it should mostly sound like unbalanced since it IS unbalanced with minimal or no differences.
G
Unbalanced out to balanced in ( with an adapter) is quite simply unbalanced. Balanced lines have two cables, operating 180 degrees out of phase (push-pull) . The balanced input essentially measures the difference (sums them up). The big advantage is that any noise that is common - like noise picked up from RF interference or 60 Hz interference, ought to cancel.
If you run only one of them, its exactly like the unbalanced.
One caveat - this assumes that the amp’s in is true, inherently balanced meaning there is a differential input and you use either all or half of it. In this case you would incur no additional conversion circuitry. Sadly, more than half the unit I have seen actually convert balanced to unbalanced and then rn through the normal circuitry. In this case, unless you have a noise problem, balanced is inferior unless you actually like the distortion another stage gives (admittedly small if well done, but in theory, its there).
So bottom line - it should mostly sound like unbalanced since it IS unbalanced with minimal or no differences.
G