Anyone know which speaker jacks I should plug into for a 3.2 ohm load? My Mesa 400+ has an 2-8's, 2-4's, and 2-2 ohm jacks. I have a 4 ohm cab and a 16 ohm cab. Togehter, in parallel (that's how the Mesa does multiple cabs), they make 3.2 ohms. Which jacks would I plug the cabs into? the 4 or 2 ohms?