Here Me, Bass Gods: I just picked up a Mesa Buster 200 1X15 combo and I have a question that the manual does not cover. The wedge version is two 16 ohm speakers with a combined load of 8 ohms. The manual does not state what the impedance of the 15 is. It is currently plugged into a 4 ohm jack, but I want to make sure that is where it is supposed to be before I start putting it through its paces. Anyone know? Ben? Edit: Also, does anyone know how you would run it with another cab, say, a 2X10? There is no parallel output for the combo speaker.