And you would never use more than ONE of the four connectors (2-Speakon, 2-1/4inch) as an input....and ONE as an output to another speaker.
You would never, for example, run two cables from two different amps (or one amp for that matter) to the same speaker or run from a speaker to another amps input. This should go without saying, but after reading the other fried speaker thread I thought I would mention it.