Could someone tell me if they are real JBL 4333B

Yes still the 4333, home version was the L-300, which had a black front as yours are.
I think they were dressed up to look nice in the home, instead of the industrial/studio/road grey.
 
I've considered going to a veneer on mine several times, but they've been light grey all their life and I guess that's the way they'll stay...
 
yep, dressed upgray industrial cabs. nice find.

a buddy of mine acquired an over-the-shoulder tenor horn (like a modern baritone) found in a California gold rush ghost town. he had it restored; it came complete with a mouse skeleton deep in the tubing. they get in just about anywhere
 
Do you guys know where i can replace cabinet insulation? the insulation inside these speakers have bad smell, do you guys recommend to replace it?
 
juniorJBL said:
Those may have been a Gray pair that got veneered. AFAIK JBL only had walnut veneer or painted unless they came from the JBL "Custom shop".

None the less they are JBL cabs and components. Nice score:banana:
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Yes, you can see hints of the grey paint in a couple of the interior shots. So likely oak veneered with the odd rounded trim - baffle looks like OEM black pebble finish. Similar to my 4331's.

jdurbin1 said:
Those look like the industrial finish version, that have been gussied up by addition of oak veneer & molding added to the front. As to the internal condition, mice would have no problem at all moving into that nice comfy cabinet via the lower port although I would think they'd find the fiberglass fill a little itchy at some point.

You probably need to decide whether to leave them as-is (neither fish nor fowl), restore as industrial cab version, or try and replicate the blue face/walnut veneer version. I don't think any of the current veneered areas are original so going that way wouldn't be a sin in my eyes, but then again I love that walnut veneer/blue face/blue grill version and I also am not enough of an expert on JBL to tell you these couldn't have been a special order from the factory. The advice to check on some of that at lansingheritage.org is a good one.

John
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I'd probably jettison the front trim and add in some angle trim similar to original but matched to this oak veneer. Otherwise, sky's the limit if reveneering, plenty of options.

kaoticfury said:
so whats the story with the gray pair？ r they still 4333？
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This is the 4333B in a "Utility" cabinet grey paint which was available from the factory, usually for soffit mounting where the cabinet wouldn't be seen anyway, or for mounting high up in an open air ceiling where it had to blend in. Looks OE factory built.

denny3249 said:
The 4333B and 4331B (2-way version) came in a couple of variations.... The natural wood finish with either the blue or black front. The 4331B also came in a painted light grey with a black front. Those look like the real thing to me, FWIW. I have had my light grey/black 4331B's for 34 years, 2 wives (neither one liked them "too big and ugly"), life's ups and down's.... they're in the will for my oldest grandson, who really wants them now.
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Yup, I've got a set also of 4331's, unlikely to change unless I can find another 4503WX walnut cabinet to swap components for.

kaoticfury said:
Do you guys know where i can replace cabinet insulation? the insulation inside these speakers have bad smell, do you guys recommend to replace it?
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The insulation can be replaced with Owens Corning fiberglass, look for the 2 inch compressed flat stuff, some like using the paper backed versions. Don't use the super thick fiberglass intended for attics. The compressed fiberglass is like for lining materials and for wrapping around pipes.

Pull all components out, be sure to mark all wires as to polarity and driver. Be careful with foilcal - do not remove unless you need to.

If you pull all the old fiberglass - use gloves and a mask, do it all outside in the dry, and spray down the inside with Lysol or similar disinfectant that cand kill viruses, let dry, then vacuum all the droppings out first - make sure you have a good bag in the vacuum and maybe cover the air outlet to be sure no dust gets expelled into the air.

then gently pull out all the fiberglass and gently place into very large plastic bags (like garbage bags) tie and discard in the trash. Then spray the cabinet interior again with Lysol and dry, then vac again, and wipe with dusters. You might get lucky and find a JBL checklist for the cabinet construction.

Then you can staple in the new fiberglass in the same places, lining pretty much all interior surfaces. Use long staples and a staple gun if possible - otherwise you may have to use adhesive and the paperbacked stuff.


kaoticfury said:
One more question. If these speakers are truly JBL 4331 convert, how can i tell? specially crossover. thanks
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If a 4331 convert, the crossover would not have a section for the 2405 and only one L-pad. The crossover number would also be different (3331 vs 3333)
 
mech986 said:
Yes, you can see hints of the grey paint in a couple of the interior shots. So likely oak veneered with the odd rounded trim - baffle looks like OEM black pebble finish. Similar to my 4331's.
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I did notice that good eye!! Yeah the last photos do show it to be oak venner.

I would also remove the front trim and replace with something like the OEM angle.
 
thanks everyone. so it sounds like this is a 4333 industry finished cab huh? i am just hoping this is not 4331 convert. it looks like you can convert from 4331 to 4333, but sound quality could be compromised.
 
kaoticfury said:
thanks everyone. so it sounds like this is a 4333 industry finished cab huh? i am just hoping this is not 4331 convert. it looks like you can convert from 4331 to 4333, but sound quality could be compromised.
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How could sound quality be compromised if you have the factory parts in the same cabinets. I'd be more afraid of the mousy poops ... :no:
 
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