" wrote:
You talk about the voice coils becoming shorted, I think you probably
meant to say burnt open. A voice coil with a shorted turn will still
respond to the battery click test, it just will not respond well to
higher frequency inputs.

It's going to mess Qes and efficiency. I think I've seen rubbed turns.
Smaller tweeters are more likely to fuse open near the connections. Woofers
will burn over a large area.

Greg