It's quite common for equipment that features an XLR connection to not actually support balanced input without adding another device to make it do it. Basically it just makes the XLR a glorified connection with no advantage in audio in most cases.[/QUOT
If your processor and power amp have XLR connections is there and improvement or not?
If you connect balanced equipment to balanced equipment (which uses XLR connectors), any induced noise will be cancelled out. So, you can lower your noise floor... which most people in a home don't have a problem with so its kinda negligible. Maybe some super-audiophile might be able to hear the reduction in emf or something, but, I sure can't