Hi Wayne! Thanks for the picture and great explanation.
How about these two JBLs? They are 2225Hs. They appear to be of different generations from the looks of the vent and speaker terminals. One also appears to be an authentic JBL recone (the one on the left with the brown ring on the underside of the cone and white writing. How will these two sound together as a pair in a stereo system? Is it possible that they will be noticeably different?
Is it better to pass on them and try to get either two authentic recones, or two all originals? Or, will they be ok? Thanks again for all your help!