? I know the Manuel says that has anyone tested it rz 70 says same but tested at 4 v
I don't know if anybody has. In general I can tell you that AVRs in general have low and poor overload margins. I would doubt you can get 4 volts out of that AVRs preouts.
I have no clue why you are asking the question, or what you are concerned about. You are really parsimonious with your information, which makes intelligent replies impossible and makes you a very irritating poster.