DCR difference on 375's

[Dwight]

I have two 375's for sale on E-Bay and even though they have close serial numbers the dcr is very different for each speaker, 13.0 and 8.3. A buyer asked why this was and I didn't know the answer. Can anyone help?

[ratitifb]

Are 2 diaphragms JBL original :blink: ?

[Dwight]

Yes, they are the original ones. Both drivers have two of the four wax seals present and I have known the original owner for thirty years and he replaced them.

[Dwight]

I mean "he never replaced them"