It should say how to in the manual for the amp
If not or no amp it should be fairly simple, connect the positive speaker wire to the positive terminal on channel A, 1, ect then connect the negative speaker wire to negative on channel B,2, ect and then wire to the respective terminals for the speaker and that should bridge the amp.
You may need to flip a switch somewhere on the amp or something special though that is why I suggest consulting the manual, it should walk you through the process if the amp is bridgeable.