(06-01-2021 07:07)CTAC писал(а): Or it can be connected to a line transformer. The main idea of balanced signal line that the signal must not be grounded at any point. You can use single ended amplification and balanced signal line, just use line transformers.
JFYI, I never search for an explanation there, always here.
Quasi balanced line that's when the signal is grounded at only one end of the line.