I need to explain to my friend that more ohms into less ohms is bad. He is just guessing that it's ok (he thinks that he knows EVERYTHING). I did some research and found that since the resistance is lower on a lower ohm cabinet, it cannot handle the power of the head and could possibly catch fire so that is bad. Am I right? I don't wanna sound like an idiot when I tell him this. On a kind of unrelated note, I have two 4 ohm crate cabs and an 8 ohm b-52 cab. Would it be ok if I used the 4 ohm output on the head to connect to the b-52 and then just link the crates from the b-52? They each have two inputs.