I just received 4 Celestion G12K-85 speakers to put into my Peavey 412MS to replace the stock Sheffields. I got them all hooked up and installed (havent had a chance to test them with my 6505+ yet since I live in an apartment), just one small problem...one of the speakers came with a tear in the cone! I'm not sure if this happened in transit or what, I've attached pictures of the damage so you can see. Anyways I just need to know about how to fix the tear in the cone, etc. Will it effect the tone or response of the speaker at all?
Sorry to say, that's a non-repairable problem short of replacing the whole cone, which not many people do properly. It's usually easier/cheaper to replace the whole speaker rather than trying to find someone affordable who will replace the cone with a proper replacement, and properly centred and balanced and everything so that it will perform properly.