Why aren't my speakers working?

First things first, do other speakers work?

Unless they’re USB speakers, they probably won’t show up in the audio settings. Just set the computers output port as the audio output device and you should be good.

And as @bob_ said, make sure the speakers are fully functioning in the first place.

We have no other speakers to test, and these speakers work on another computer.

@sliceswiththings Did your previous speakers (assuming you had them) work? Are they USB or regular speakers?