Here is the Anarchy DXT design. I performed these measurements, outside in my parking lot, with the fork lift. That is my standard measurement procedure when the weather is good. All this data is un-smoothed, raw measurement data that I import into LSPCad for simulation of the crossover. The measurement is NOT simulated, the crossover is. I find that these pretty much match the build exactly as long as you use real off-axis measurement data.
None of my off-axis angles are exact. I rough estimate them based upon some chalk marks I have in the parking lot. They don't have to be exact as they just generally reflect a point along a continuum.
This is the active design. I don't know if I can do this good with a passive. I should be able to get close but the active design will probably have an edge in performance.
My on-axis measurement was goofed so I only have the off-axis data starting at 20deg. On-axis should be fairly close or I may have to adjust the crossover a little. The on-axis data is actually not as pretty as the slight off-axis due to the baffle diffraction, which is probably not audible.
![](http://www.diycable.com/main/images/Anarchy/DXT/20deg.jpg)
45 deg.
![](http://www.diycable.com/main/images/Anarchy/DXT/45deg.jpg)
70 deg.
![](http://www.diycable.com/main/images/Anarchy/DXT/75deg.jpg)
Vertical off-axis from above. I would guess this is somewhere around 25-30 deg.
![](http://www.diycable.com/main/images/Anarchy/DXT/above.jpg)
Vertical off-axis below. I would guess this is the same 25-30 deg. below.
![](http://www.diycable.com/main/images/Anarchy/DXT/below.jpg)
You get different vertical performance because of the physical separation of the tweeter-midwoof. Typically the null you see off-axis in the direction of the tweeter is the largest off-axis null in a 2-way with a traditional driver arrangement. This is excellent.