And on a temporary stand (tilted up 45% to MLP), and hopefully a few FR graphs.
The mic is 2' from the baffle face
At this point I have dusted-off my REW setup only to fing my mixer/soundcard is not playing well with my laptop.
So the best I can do is some low-end, in-room comparison measurements with my Velodyne SMS a subwoofer system.
Here's the very low end from Big Mal
Big Mal replaces a poorly integrated RC7 that I naively buried in bass trapping (mineral wool) in my overhead soffitt, 3 years ago when I was truly uninformed
this is the microphone positioned 2' in front of the overhead RC7:
And an in-room, low-end comparison graph taken with the same gain settings; when using the RC7 as the source:
No question; my original center chanel gives the RC7 an unfair disadvantage
As for future measurements; I have the new USB DSP mic on order. Hoping for a more meaningful set of full range FR graphs using REW