Quick speakon question

The speakon wiring diagram you are showing is not typical. First, most bass amps and speakers use +1,-1 for connections. So your speaker wires will be connected to those terminals on both ends of the connection. (Check your manuals to be sure.) If you are daisy chaining in parallel, (which is typical), you would use a second speakon cable wired the same way. Depending on your setup, the second cable would originate from a second speaker output on the amp or a second speaker connection on the first cab.

BTW, the reason why you see +1,-1 and +2,-2 terminal pairs on the speakon connector is because it can carry two separate audio signals. This is useful for certain pro-audio applications such as bi-amping. For most bass amp situations, the second pair of terminals can be ignored.