Ok, so I just thought of this while looking for yet another modular setup... If I have a power amp and run 2 4ohm cabinets from it, how do you get the channel from the preamp to go to both amp channels? Are there two separate channels on various pre's that you run? Or do you have to buy an amp that will run bridged at 2ohms (if any even do that?) Something I was just curious about, as I'll eventually want to run both 4 ohm cabs (in the future, at least) at the same time... Thx!