I am brand spanking new to heads and cabs. Been playing combos for 30 years and just recently bought a Chicago Blues Box head and a 2-rock cab. That is awesome for blues tones, but now I'm thinking of picking up an Orange Dual Terror for fun. Can I use something like an a/b switch (or my Boss line switcher) and plug both heads into it, then the 1 line into the cab (as long as the ohms match up)? Or is that a no/no for some electronics reason?