impedance curve

Hi guys, I recently got two Beyma 10G-200 10" drivers on my table. I don't know where they were used before and how they were treated. Driver number 2 (Beyma 10G-200 NR2) has a small problem with the cone. It is separating on a ca. 5 cm section from the surround. I intend to repair the driver...

I've been playing around with measurement of In-Ear monitor Impedance Curve using REW Impedance measurement feature. Many thanks to @JohnPM for the great software! So here I just simply want to share my setup and things that I've learnt so far. The setup: Audio Interface: RME Babyface Pro...