Sounds really complicated to me.
There are allot of different test.
There is a method of bypassing the influences of the room by adjusting the time gate, to say 200ms or so where the loudspeaker can be examined on it's own from 1 meter or 3 meters. I would try different time slices (varying the time gate in the impulse response window) and look for spikes that are the same looking on each of these readings. Once you establish which has least influence on your room, you can can create more accurate test results. This shows what is noise from the speaker itself, and what is caused by the room. When you have set the time gate , I think maybe following the instructions on the thread linked bellow will give you the best measurement so that you may bypass the influences of sound that are in your system. After you have basically established your test setup, you can begin running sweeps. This would work better in a large room. Pro's use a large reflective room with absorption behind the speaker I think to examine the room interactions from various locations.
You could sit the speaker near where you intend to use it and take a measurement before and after.
You may want to check Response + Harmonic Distortion.
It's been soooo long since I saw this done so this is merely my guess as to what to do. I would also like to know the correct way to do it. It would be very interesting to examine my own speakers if I get new ones very soon.
http://www.hometheatershack.com/foru...a-feature.html