hi, according to the Vox Website, the new Vox AC50CP heads are

50 Watts RMS into selectable 8 or 16 ohm loudspeaker load.

does this mean i can plug her into a single 50w speaker 16ohm cabinet?
what about if i wanted to plug it into a 212 cabinet, what would the specs for that cab have to be?

thanks alot, im not to sure about this cabinet and head stuff
Ideally would want the cab to a bit higher wattage wise than the head but it is not necessary if your not cranking it all the time. The AC50 will be hella loud I'm sure so I doubt you will be going 4 on the volume knob.

As far as the 212 it is basically the same story. Make sure it is rated for at least 50 watts and is either 8 or 16 ohms.

There is a bit more to it if the 2 speakers are not the same wattage and also depending on how the speakers are wired but I won't get into all of that here.

good luck and let us know if you get this amp