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JBL 2441 diaphragms

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Posted on October 30, 2009 at 08:04:24
vetmedrobert@gmail.com
Audiophile

Posts: 145
Location: Ontario
Joined: September 20, 2007
 I have a pair of diaphragms from JBL 2441s and am wondering if they are real JBL diaphragms. One has a date of Mar 02 88 on it with SP and a part # (?) 61435. The other has a date of Nov 03 1987, a circled SP, and a part # of 61435. The last digit is a bit smeared, it could be a 6. Any help would be greatly appreciated.

RE: JBL 2441 diaphragms, posted on October 30, 2009 at 08:50:46
weltersys
Industry Professional

Posts: 456
Location: NM
Joined: September 28, 2004



The picture above has a 2440 on the left, a 2441 diaphragm on the right.

I think the 2441 on the right was manufactured in the early 1980's.
I don't know JBL manufacturing codes, so can't help you there, but I know these are real JBL product.

The 2441 has a black dot in the center on the other side.
IIRC, the very first 2441s did not have the dot, which was added for a little center mass and continued as a feature.

This 2441 has a number 61780 and 58747.

RE: JBL 2441 diaphragms, posted on October 30, 2009 at 08:59:51
vetmedrobert@gmail.com
Audiophile

Posts: 145
Location: Ontario
Joined: September 20, 2007
 Thank you for the images, mine look like the one on the right except that they each have a single silver dot in the middle.

RE: JBL 2441 diaphragms, posted on October 30, 2009 at 11:54:36
weltersys
Industry Professional

Posts: 456
Location: NM
Joined: September 28, 2004
 My memory may be wrong regarding the color of the dot, but the 2441 definitely has one :^)
RE: JBL 2441 diaphragms, posted on October 30, 2009 at 08:20:00
zako
Audiophile

Posts: 467
Location: Mo.
Joined: March 29, 2004
 Does it have a diamond pattern surround ?? or a white mylar surround ??

RE: JBL 2441 diaphragms, posted on October 30, 2009 at 08:45:34
vetmedrobert@gmail.com
Audiophile

Posts: 145
Location: Ontario
Joined: September 20, 2007
 Diamond pattern, no mylar.

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