Wayne Parham Messages: 18787 Registered: January 2001
Illuminati (33rd Degree)
You're right that it's a matter of geometery. You can calculate the source locations, but you have to know the crossover phase, acoustic phase and physical position of each driver. You can also measure each driver with a click test and see the delay between them. That will tell you exactly what the source location is. Knowing the positions, you can determine the centerline and the arc of the off-axis-nulls.