What Ohm are the V30's in a Diezel RL cab?

Just wondering what the ohms of each V30 speaker are in my Diezel Rearloaded cab. Bought in late 2018 so it's newer. Would they be 8ohm each or 16ohm each? Looking to put some H75 Creambacks in an X shape with the V30s and trying to figure out what I have to buy without having to take it apart right now. I'm a bit new to this game of speaker switching so I appreciate the help.

If you have pics, that is also greatly appreciated.

Thank you!

Is your cab 2x12" or 4x12" ? What are the back plate impedance markings ?

4x12RV Cab
Impedance markings:
Stereo A: 8 Ohm
Mono: 16 Ohm
Stereo B: 8 Ohm

I would say 16 Ohm each:

in stero modes (A and B) 2x speakers in parallel -> 16/2 = 8 Ohm

in mono mode 2x stero modes in series -> 16/2 + 16/2 = 16 Ohm.