There's two ways of doing this depending on how your box is wired.
Where Z is the impedance of a given speaker.
Tighten down the terminals so that both pieces of wire are securely fastened.
Posted on Saturday, October 09, -
Description: If you are wiring the coils in parallel then run a wire from the first positive terminal to the second positive terminal and a wire from the first negative terminal to the second negative terminal. You speakers should also be labeled with a wattage.