Uncertain which monitor I bought

[jfpare]

I bought a pair of monitors on the cheap. They seem to be all JBL original. The enclosure is a 4502wx (yep, it was covered in black arborite!!!). The woofer is a 2215, badly redone with a weird huge black pseudo cap! there is a 2405 tweeter and the mid is the expected horn but with a 2440 driver.

My guess is most likely 4320, late model. I am wondering if the 2440 can be original or was a replacement?

My understanding was that nothing was really standard at the time at JBL

https://photos.app.goo.gl/mbWpPBlsUfVBloag1

[martin_wu99]

I bought a pair of monitors on the cheap. They seem to be all JBL original. The enclosure is a 4502wx (yep, it was covered in black arborite!!!). The woofer is a 2215, badly redone with a weird huge black pseudo cap! there is a 2405 tweeter and the mid is the expected horn but with a 2440 driver.

My guess is most likely 4320, late model. I am wondering if the 2440 can be original or was a replacement?

My understanding was that nothing was really standard at the time at JBL

https://photos.app.goo.gl/mbWpPBlsUfVBloag1

No pics no truth

[jfpare]

No pics no truth

Yes, picture are in the google link. Just did not find any other way to include them

[speakerdave]

Assuming the 2440 is on the short 2311 horn I would say that overall you have done well. The photography is not very clear, so some questions remain. They are probably correct, but what model are the crossovers?

Aside from some cleaning up and checking performance (and originality) of the mid and hf diaphragms the remaining question I see is the woofer cone. If the woofer has been reconed with a diaphragm and voice coil as bogus as the surround and cap, that's a real problem because the correct cone kit for the LE15A/2215 is no longer available. My hunch is, though, that the incorrect surround has been installed using shims to keep the voice coil centered-- thus the cap removal and replacement. If so the voice coil and cone may be correct. You might be able to get confirmation of that here with clear closeup photographs of the front and back of the cone including any white printed or chalked numbers and dates.

[jfpare]

Assuming the 2440 is on the short 2311 horn I would say that overall you have done well. The photography is not very clear, so some questions remain. They are probably correct, but what model are the crossovers?

Aside from some cleaning up and checking performance (and originality) of the mid and hf diaphragms the remaining question I see is the woofer cone. If the woofer has been reconed with a diaphragm and voice coil as bogus as the surround and cap, that's a real problem because the correct cone kit for the LE15A/2215 is no longer available. My hunch is, though, that the incorrect surround has been installed using shims to keep the voice coil centered-- thus the cap removal and replacement. If so the voice coil and cone may be correct. You might be able to get confirmation of that here with clear closeup photographs of the front and back of the cone including any white printed or chalked numbers and dates.

Hi, I have added a few more pictures. The sad woofer history might be clearer!

Here is the information I gathered...

Enclosure 4502wx
#51358
#51360

Crossovers
3105
#11552, #11545

3110
#5889, #5924

Woofers 2215b - 16 ohms
#13231
#13348
Worked on July 1991
No chalk markings or numbers of any kind on back of cones (signs of glue of previous suspension )
Dustcap missing
Suspension glued OVER cones

Mid 2440 - 16 ohms
#9605
#4517

Horns 2307
#13813
#14230

Lenses 2308
#16337
#17149

Tweeter 2405 - 16 ohms
#16033, #16065

[speakerdave]

The 2440 doesn't mount on the 2307. Is there an adapter in there mounted backwards?

[martin_wu99]

Yes, picture are in the google link. Just did not find any other way to include them

Please make your pics as attachments directly,i can not open your link

[BMWCCA]

Please make your pics as attachments directly,i can not open your link

I can see them fine. You mean you don't have free-and-open Internet in China like we have here in . . . oh wait—we don't have free-and-open Internet anymore, either!

[Lee in Montreal]

oh wait—we don't have free-and-open Internet anymore, either!

True

[hjames]

Pretty sure you can't attach images on your first outting to this site ...
make a couple more conversational posts and maybe by post #6 you'll be able to upload images ...

I bought a pair of monitors on the cheap. They seem to be all JBL original. The enclosure is a 4502wx (yep, it was covered in black arborite!!!). The woofer is a 2215, badly redone with a weird huge black pseudo cap! there is a 2405 tweeter and the mid is the expected horn but with a 2440 driver.

My guess is most likely 4320, late model. I am wondering if the 2440 can be original or was a replacement?

My understanding was that nothing was really standard at the time at JBL

https://photos.app.goo.gl/mbWpPBlsUfVBloag1