Hey guys, right now I'm running an Ampeg B1RE into an SVT210 and an SVT15. I'm also building a 15" 8 ohm speaker cabinet, and I plan on using all 3 cabs at once. However, my Ampeg head can only take a 4 ohm load. I figured I have 3 options: 1. buy a head that can run at 2 ohms 2. buy a stereo power amp and run a line from the ampeg into that 3. buy a pre/power amp setup. What do you guys reccomend?