red probe -> red receptacle - black probe -> black receptacle. all volumes turned down.. amp hooked to load.. turn amp on -> pull fuse of the pair you're biasing.. (inner or outer) set multimeter to 200mA. amp out of standby turn screw on screwhole to adjust bias to ~65mA then amp standby.. replace fuse, repeat for other pair.
red probe -> red receptacle - black probe -> black receptacle. all volumes turned down.. amp hooked to load.. turn amp on -> pull fuse of the pair you're biasing.. (inner or outer) set multimeter to 200mA. amp out of standby turn screw on screwhole to adjust bias to ~65mA then amp standby.. replace fuse, repeat for other pair.