So... I recently bought an old Ampeg 215 cab. It was loaded with Altec 421A's. The previous owner says he bought it new in 1970 or 71, and it is 100% original. I pulled the speakers out to take a look at them and found some odd things. Check this out. 1. Both speakers have similar date codes from 1969, so they're probably original... nothing weird yet 2. Speaker 1 meters at 7.8 ohms and speaker 2 meters at 4.0 ohms, but both are marked as 8 ohm speakers 3. Speaker 1 appears to have a non-original cone and a larger dust cap 4. Speaker 2 (the one that meters at 4 ohms) appears to have the original cone, dust cap, and cork gasket So, here's the net... one speaker appears to have been reconed but meters correctly. The other one appears to be original, but meters wrong. What the heck??? Any ideas???