measure woofers with IMM-6

I see you started quite a number of threads. Perhaps you should read about rew first. Its free, and its pretty intuitive, no manual needed, unless you need to perform some complicated calculations.
You do not need calibrated microphone, most of the electret mics are very flat on lower range. Typically there is little hump in upper frequencies before the dive. Calibration files correct for this hump. But for woofers you should be fine without calibration file. Rew will ask you if you have it, just in case. Post results.
Good luck.
 
I see you started quite a number of threads. Perhaps you should read about rew first. Its free, and its pretty intuitive, no manual needed, unless you need to perform some complicated calculations.
You do not need calibrated microphone, most of the electret mics are very flat on lower range. Typically there is little hump in upper frequencies before the dive. Calibration files correct for this hump. But for woofers you should be fine without calibration file. Rew will ask you if you have it, just in case. Post results.
Good luck.
I didn't know that, isn't a calibrated microphone necessary? So I can do it with any type of microphone?