Great post,...
So I understand now that I can use my Avatar 2-10 (4 ohm) cab, with my Hartke 4-10 (8 ohm) cab, and will be using 2.667 ohms... My main concern was that I was gonna be frying something.
I am using my Ampeg PB800 head, which is rated at 800 watts @ 2 ohms, and 550 watts @ 4 ohms...