Simple question but I'm kinda wondering more about how the head acts differently between 1 or 2 cabs plugged in. I have a VS100 head and cab. Now does the head work at 100watts thru the single cab right now....and if I get another cab, does the power switch to 50watts to each cab or...? I have a buddy selling his Valvestate 1 Head and 4x10 cab and I wanna just use the cab and make mine a full stack.....possible or do I have to worry about ohms and all this? Maybe its best to use both heads and cabs in a stereo effect? I'm not sure what to do.