Blown driver

spiral, I'll give them a call, Thanks

Your speakers can be repaired at the cost of one (or two) tweeter(s).
There will be no warrantee on your B&Ws.
In fact there is never any warrantee on any speaker (despite the high gloss add papers tell something different): The manufacturers exclude
- mechanical damage (e.g. if you stumble, fall into the cone and damage it- or a cat rapped your beloved transducers)
- electrical damage (if the voice coil burns/melts)
- ...and do you know any other damage that might happen? So you see...

No manufacturer will ever feel responsible for a damaged speaker!

Regards and good luck,
Jan

Have blown several speakers in my day. IME reconing is far cheaper than a new speaker as long as there is a recone kit that fits your basket.

If your other speakers sound OK then they are OK and no need to replace them.

I suspect some type of electrical spike/surge went through your system when something with an electric motor was turned on.

Blown Driver update. Installed new driver today. Darn, it sounds more responsive & smoother right out of the box. Now I'm thinking three more to go.  I thought it would take some break in time. On it goes.