Any links explaining how to measure Qtc and Fsc of sub? (1 Viewer)

[JesseSilver]

I am building a sub and have used UniBox to do so. I will eventually be adding a Linkwitz Transform to the sub to lower the Qtc and Fsc, but to do this accurately, I would like to be able to measure the pre-Linkwitz Qtc and Fsc of the sub. I can calculate it, but I imagine it may be quite different in reality.

I have a multimeter, oscilloscope, reference mic, signal generator (in computer). How do I do this? And yes, I searched but couldn't find what I needed...

 

[TimForman]

I've never done this but I did find this. How to measure Qtc
Is this part what you're looking for?

 

[JesseSilver]

Actually, that may be exactly what I'm looking for. Thanks!!