Per Tom Tyson: "This is the initial schematic for the AR-11. I think all AR-11’s are the same, electrically, so it should apply. Note the 2-amp (FNM-2) fuse designation: I am not sure that any of these speakers had the fuse holder as a part of the circuit."
If God wanted us to go to concerts, He would have given us tickets. AR circa 1980.