Yes, I did search for this and after digging through many posts, have not found this yet. I did find something about the 2203 though.

Appears there are physical and acoustic differences... 2202 has a smooth cone surface and the 2204 is ribbed, 2202 has more mid frequency extension where the 2204 has more low freq. extension. Also appears that they both use a 4" voice coil in the "Symmetrical Field Geometry" series of frame.

So, are the 2202 and 2204 frames the same?

i.e. can a 2202 be reconed as a 2204 and verse - visa?

Thanks,
chad