Well you should do a full left side measurement, a full right side measurement, and then a total system response measurement (everything on). The individual left and right will show that those drivers are in phase and the xovers sum flat. Left and right sides should also measure the same amplitude.

The total system response will show if the left and right sides are in phase. With correlated pink noise the total system response should be 6dB gain over the individual sides (in theory) you'll likely see 6db at the low end and closer to 3dB at high frequencies due to reflections and stuff preventing summation at the high freq.

 

Well you should do a full left side measurement, a full right side measurement, and then a total system response measurement (everything on). The individual left and right will show that those drivers are in phase and the xovers sum flat. Left and right sides should also measure the same amplitude.

The total system response will show if the left and right sides are in phase. With correlated pink noise the total system response should be 6dB gain over the individual sides (in theory) you'll likely see 6db at the low end and closer to 3dB at high frequencies due to reflections and stuff preventing summation at the high freq.

OK, got it, makes sense. I will try that out on my next tuning session.

 

Response looks quite up and down for 1/6 smoothing, did you use moving mic or a stationary mic to measure?

I would also get the entire slopes to match, example your green tweeters quite a bit higher then your red tweeter. Tweeter to mid crossover also seems to happen right at a dip in the response for all 4 drivers, so I'd look into that some more.