How to connect a Micro Terror to a cabinet of a combo amp?

[kikis]

Hi guys,

I don't have any cabinet speakers, I usually used combo amps.
I have 2 combo amplifiers that can be use: Fender Mustang III and Fender Princeton.
And then someone gave me an Orange Micro Terror head, the question is:

"How to use the cabinet from them and connect the Micro Terror to the cabinet directly?"

Thanks..