i get that part, but how do you wire things up after the amp, like do u need 2 different cabs, 1 for each head?? or if it's a stereo cab, can you run one amp into one side and the other amp into the other side?? that's the part that confuses me. i'm not clear on the entire signal chain from beginning to end. i'd appreciate it if you could clarify that for me...if i added a 2nd head to my rig, how would i go about integrating that 2nd head??