JBL 2212 woofer thiele small parameters HELP!

[JBLPRO43]

Dear JBL friends!


I'm looking for JBL 2212 woofer thiele small parameters but I can not find anywhere. :(
I would like to re-magnetization but I can not find anywhere original the magnetic field values.
The speaker first series JBL 4311WX. It is provided with 2212 woofer.
The original 4311 manual only 2213 woofer recorded in. 2213 original the magnetic field values 10.000gauss or 1Tesla or would i need 2212 original the magnetic field values.
The 4310 It is provided with 2212 woofer so I looked original 4310 manual. The 4310 manual he writes 2212 woofer original the magnetic field values 9200gauss.


What should I do? 9.200 gauss or 10.000gauss values choose?
Please, someone help!
Thank you very much!

[JBLPRO43]

The 4310 (1972) it came out 2212 woofer and 9200gauss:
http://www.lansingheritage.org/html/jbl/specs/pro-speakers/1972-4310.htm


The first series 4311WX (1973) came out 2212 woofer and 10400gauss:
http://www.lansingheritage.org/html/jbl/specs/pro-speakers/1973-4311.htm


The 4311WX-A (1978) came out 2213 and 10000gauss:
http://www.lansingheritage.org/html/jbl/specs/pro-speakers/1978-4311.htm


Why not the same gauss values? 4310 (2212) and 4311 (2212)?
I can not decide 9200gauss or 10400gauss choose my own 4311WX 2212 woofer.

[JeffW]

Split the difference, 9800. I bet nobody would ever know the difference.

[JBLPRO43]

Split the difference, 9800. I bet nobody would ever know the difference.

Thank you Jeff!
I hope the right decision the 10400gauss also...