I like to run small amps like that to bigger cabinets.
I have some Radio Shack alligator-cables and a speaker cord with one end bare-wire for amp/cab mix and match.
An E120 or K120 or whatever in a cab makes a practice amp sound much better than the lil stock speaker.
Sometimes I like to keep the amp within arms reach, and the cab across the room, so the speaker-wire gator-clip thing makes that easy.
Something like this: