Check out www.partsexpress.com
they have a lot of choices. Get 2 that matches your current woofer's specs as close as possible. That may be difficult for that one, it's a pretty high end speaker. They also have surround kits if it is just the surrounds and the voice coil and spider are ok. Then you could check for a shop to replace the surrounds locally. Look for speaker re coning in the yellow pages or google. Good luck.