Here is the tweeter turned up full.
and individual runs for each driver
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Are you using a crossover on the tweeter, or is that raw response?
Looks to me like you need something for 150-500Hz, the woofer isn’t going high enough.
Those are all with crossover in place. Will do raw responses next.
I had a microphone (UMIK1) arrive earlier today and for comparison/ interest here are my initial results
Bet yours sounds better than mine 
They might not. The overall FR looks passable
but it’s all very hard sounding and zingy
Raw responses. Looks like woofer needs to be turned up as a first point. The Mid range seems pretty flat from 500hz to 3,500hz, the tweeter isn’t very flat at all and is only making more spl than the mid from 6k up
I think the mid horn is probably way nicer than the bass driver, so am tempted to crossover low at maybe 250hz
The mid does look a bit funky from 250-400, but it’s worth a try. Crossing over the tweeter at 5k maybe?
I like how your graphs go from a jet engine at 10cm to the heat death of the universe. That’s one way to make it look flat!
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This is my first stab.
I need more from the woofer and am already maxed out and throwing too much mid away. Might try and work out how to wire the channels to be bridged.
It’s natural result of workplace self preservation. And a X axis best practice that I was taught at GE where we had to make shit look good to the Global leadership or our Site MD might receive a DCM Award (Don’t come Monday). Here’s the same data in a less selectively presented graph.
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Can you just reduce the gain on the higher channels?
And are they first order? Try steeper, like 4th, while you’re sussing out which driver is doing what.
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I can. LR12db
48db slopes and amp gain fiddled with. I did reverse the phase on the woofer to try and kill that dip around the crossover point, it made little to no difference.
How does it sound?
Engaging, Cat Stevens is shouting at me from 10 feet away at the moment. Bass definitely needs work (better baffle, stuff is rattling).
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Cool. Where are you measuring these, 1m or listening position?
Listening position, mic st 45 degrees toward ceiling just above ear height
You might want a bit more treble roll-off. You should normally aim for about 1dB per octave roll off from 100Hz, so 20kHz is about 6dB down. You might find the sound you have a bit bright, with that 10kHz hump.
But it’s looking way better than before!
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Will post my measurements later but wanted to check. What is the accepted smoothing to use, what is the accepted y-scale to use and where do you measure?
I read recently, but don’t know where, measure above 500Hz, at max of .5m from driver. Below 500Hz from listening position. Set the y axis at 5dB increments. Smoothing I use sixth octave.