1. If the cable ends are not yet exposed, first insulate them to a depth of approx. one centimeter at the ends.
2. Now unscrew the threaded screw on the upper side of the banana plug.
3. If necessary, twist the copper wire and insert the cable end into the side opening of the banana plug.
4. Now tighten the screw again.
5. Now you can insert the banana plug into the respective speaker input or amplifier output.