I'm trying to find out what speakers were in my 66 Super Reverb. My tech pulled the speakers outta my 73 Super cuz they were CTS Alnicos and said the speakers in the 66 were not nearly as good. I can't remember what he said they were. I found the codes and 1377318 from the 73 I see are CTS Alnicos but the old speakers coded 6351002-2 I can't seem to find anywhere. Any help? They are old looking Fender speakers.