Experiments with speaker Directivity

[Proyecto NEMA]

I'm experimenting with the directivity of some speaker configurations and would like some feedback on this. I've attached two images of the same speaker. Thanks in advance.

 

[alex-z]

First off, are these measurements properly time gated to remove reflections? Those peaks and dips from 120-700Hz indicates severe resonances or room reflections.

The directivity is a mess. Even ignoring the resonances you have significant widening in the 1500-4000Hz region. Given the severity I assume this is a 2 way speaker with no tweeter waveguide.