AR3a-Improved - newbie questions

Hi, I've just bought a pair of AR3a-improved speakers, and was wondering if I could ask some questions please? The main issue is that one of the woofers is not working. I have tested with my multimeter and get a reading around 2.6 ohms. The diaphragm moves in and out when I press it, so there doesn't seem to be an issue there. As a test I swapped in the other woofer, which works, so there isn't an issue with the crossover. Here is a picture of the faulty woofer:

While I agree with Frank regarding the occasional tinsel lead/cone juncture issue, connecting your meter to the terminals and tinsel lead would not provide a proper (or any) reading if this were the case. The tinsel lead is the connection to the voice coil! Inspection under the dust cap will often confirm the integrity of the voice coil former in early AR 12 inch woofers exhibiting this type of issue. If the former is torn you will be able to see the damage. Use an Exacto knife to slice aro