Hypothetical setup: 1 head of your choice, 4 ohms 1 210 cab, 8 ohms 1 212 cab, 8 ohms So there you have the amp delivering its full power into 4 ohms. However, most heads don't go to 2.6 or lower, so adding another cab isn't practically possible. So, you couldn't add, say, a 410 and 115. How would you accomplish running a 3-4 cabinet setup? My initial hypothesis is get a separate preamp, and for 3 8-ohm cabs have a 2 ohm power amp. But what about 4 cabs? Are we talking 2 power amps? How would you connect these? And no, I don't have the funds/transportation/strength for such a rig. This is just for my curiosity/pipe dreams.