[morzh]

I have just spoken to Rich Stamer; he indicated the spiders do not get repaired and a full re-cone would be what he would do. He keeps the voice coil impedance, but itself it also gets changed.
I looked at the cone again (well, there is a pretty detailed photo here up in the beginning of the thread): it has a few tears loosely smeared with cement, and the spider, to me, has to be replaced: I do not see a good way of repairing cracks in cardboard.

So I think I will send it out for a full re-cone.

I need to do it soon as Rich is going for a surgical procedure and will stop everything after mid-November till some time in February.

I guess I will align the radio first and then send the speaker out.