DT50 Combo missing a speaker

[Cuda340 0]

Hi,

 

I recently bought a DT50 combo locally for very cheap, the previous owner kept the Vintage 30 and left the Custom Celestion.

Can anyone tell me what ohm the speaker the guy kept was?  I need to buy a replacement.

 

Thanks!

[SA66 0]

8 ohms, same as the other one, they are wired in series equaling 16 ohms, and use speaker jack "C" when both are installed