Okay, so when reading the FAQs I saw that if you have two 4 ohm cabs and you ran them in series you would get 8 ohms. if you ran them in parallel you would get 2 ohms.

So I understand that if you're using two cabs with the same ohms rating parallel will cut the ohms in half and series will double it, please correct me if I'm wrong.

But my question is what if you have an 8 ohm cab and a 4 ohm cab? would you average it out and then double/half the rating? so 8 and 4 makes 6 in series = 12 ohms? and parallel = 3? Im confused.
no sir away a papaya war is on
First of all, I can't imagine a situation when you would run cabs in series. Second, an 8 ohm cab and a 4 ohm cab is 2.666... ohms. There's some equation you can use to figure it out, a simple google will tell you what it is and probably even calculate with it for you.