We can move the rest of this to PM if you want to keep it as a discussion between the two of us.
I do understand that both are differential. I have no problem understanding that both are balanced. I do not read the other thread seeing everyone else believing the same. I just don't seem to see the kind of lock step agreement in that other thread as you seem to.
We do agree that the GS-X is a truly balanced amp and that is a good point of agreement to end on.