Wanted to find out if moving the driver 15 inches above floor level would change a lot. Again two plots, one with the microphone at 1 meter above floor level, second plot with the microphone 1.5 meter above floorlevel.
Starts to look like variations on a theme ;-) Dips changing magnitude and shape in function of distance to the driver. This includes total distance from the driver via the floor to the microphone. Different distance, different phase of bounced signal on arrival, different end result.
