Folks, I just got this info from a retailer that has been testing these, and I found out the thing I needed to know to make me move, and I am going to go for it soon.
"They will take a very hot signal on the XLR line in so you do not have to worry about overload. It will take more signal than most unbalanced inputs as it is a true pro XLR line in."
This means it's set for the +4 pro line standard, not the -10 consumer line standard.
Right On !!!!!