I had just gotten a pair of dead 2213H frames... cones were destroyed and thrown away.
Since there are no good 2213H/123A kits readily available in the aftermarket... I decided to see what would happen converting over to 128H/129H type spec, using the 128H-1 kit from MWA Speaker Parts.
I have to say- it seems to have worked fine.
All parameters, measured by Dayton Woofer Tester 3, are within 10% of original spec, once woofer is broken in. It measures between the parameters of the 128H and 129H, in terms of optimum box tuning (i.e, it would work in L65, L150, L112 and such, fine). HF performance seems to match the published curves for 128H within a dB or so, too.
I did make one cosmetic alteration- the MWA cone has a "purple" tint... so, I masked off the surround, and lightly painted the cone with flat black acrylic spray paint. That made it look a lot more like the matt Aquaplas texture of a 128H-1.
There will always be those who only want factory parts- and that's their perogative- but, this can be a good option, for those with dead frames, that simply just want a way to make something useful and functional with them, without spending a ton of money. After all, there's a LOT of things a good "128H clone" could be useful for...
Regards,
Gordon.