I have just acquired a pair of Fisher ST-832 speakers, and one of the 15" woofers is bad. My question is should try to place it with the exact same woofer, if so, where wold i go to find one. Or should I replace it with different woofer, and if so, which one would match up nicely?
If your speaker are ported and you get new drivers, you'd technically be advised to re-tune the ports, but I've got a pair of ported speakers to which I've replaced the driver and they sound fine...haven't had time yet.
There are websites like parts-express or woofersetc that sell drivers. If you can't find it, I recommend just replacing both of them.
You won't be able to get an exact replacement since that woofer has not been made for a long time. You can try ebay to see if someone is parting out the same model speaker or you can have the woofer rebuilt. You can try
If you want to do some work to replace both woofers (they have to match) you can find some info here: http/techtalk.parts-express.com/showthread.php?206925-Driver-selection-help