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Nut surface of JBL Studio speaker 4430

Thank you westend

it should look like this broken one. The values are important: 30 Ohm, 25 Watt



Zonker I try to make a list. Shouldn't be that much, mostly scews, gasket and rheostat.

It is a shame that I can't get the screws here. I asked Fastenal Europe GmbH. The answer: My first order needs to be 1000 Euro - about 2000 USD. Second order 500 Euro. Seems they deliver only to big industrial companies. On the other side it is strange that the online shop allows the ordering of a single screw.

The L-pad Assy thing is that I have one good and two broken ones. So for myself I need only one more but I thought I can make some extra ones in case someone else has the same problem with burned assys. I took a wooden plate that was on sale and asked the carpenter to make as many assvs as possible from the wooden plate. Two prototypes went wrong. So I have 3 left now.

Do you have any recommendations for better and not so expensive speaker terminals?
 
I'm putting gold-plated five-way binding posts on mine. I wanted something with a short mounting screw for the plastic crossover plates. So I found some plastic cups /binding post sets on eBay for cheap. I plan to throw the cups away and use the posts; they look perfect.
 
I received a reply today concerning the exact holes on the 4430 grill:

Depth of the holes is about 16 mm. Diameter is a little bigger than 9,5 mm.

I am still working on the cabinets so that I can fix the new plinth.
 
Hobbit66 said:
I received a reply today concerning the exact holes on the 4430 grill:

Depth of the holes is about 16 mm. Diameter is a little bigger than 9,5 mm.

I am still working on the cabinets so that I can fix the new plinth.
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Hello, I just bought a pair of 4435. I have a question concerning the grid: in the back of the grid, is there a part (female) or just the hole in the wood in which the dowel pin is placed ?
 
MacMich said:
Hello, I just bought a pair of 4435. I have a question concerning the grid: in the back of the grid, is there a part (female) or just the hole in the wood in which the dowel pin is placed ?
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WOW!!! First poster who just bought a pair of 4435s! An expert will be along in a while to answer your question. Also, if you have not done so already, please check out the Lansing Heritage website and the Forum section. Please see below:

https://www.google.com/url?sa=t&rct...6S07lpAD4YZkR3QPw&sig2=1O3JlMWbdBxiYt82GAuXfA

https://www.google.com/url?sa=t&rct...WgsTU3vY1GGLJN6mQ&sig2=QtIOHzZZNQUZuyT3oB9MNQ

Incidentally, why on earth would anyone want a pair of 4435s anyway?
 
What a chore, "having" to talk about my favorite subject all the time! :D

The dowel pins for the grills are set into holes in the baffle on one end and holes in the grill frame on the other. Both holes are bare MDF; no plastic.
 
Zonker92 said:
What a chore, "having" to talk about my favorite subject all the time! :D

The dowel pins for the grills are set into holes in the baffle on one end and holes in the grill frame on the other. Both holes are bare MDF; no plastic.
Click to expand...

How are YOU making out in this regard???
 
Thanks for asking! I picked up the second cabinet this week (thanks again, Bart!) and last night I got both cabinets up on the castered bases I'd made for them, so I can wheel them around. The crossover was tough to remove (the mounting screws were frozen) but I got it out, so now I can finish up the charge coupled crossovers. Bart also gave me the woofers, freshly refoamed, and they look freaking awesome.

So now I just need to finish up the crossovers, clean up one horn, put on and finish the veneer and repaint the baffles; also get the grill cloth redone. We're probably moving into a new house soon so I may not get them up and running until we're moved; they're so much lighter without the guts, plus I don't want to deal with setting them up twice. I also got some 4301Bs and 4425s (Bart rocks!) so I'll be working on those soon, too! :D I'll have the whole line-up of buttcheek monitors!

(Just a test fit on the caster stuff below; I promise it will be clean when it's finished.)

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^^^The pics of those woofers makes me sweat a little...

You bought a set of 4430s??? I TOLD YOU it would never happen when you said that you were going to SELL a set of 4430s! I just did not expect you to be buying a set of 4425s! Good for you!!!
 
Zonk, beautiful work as always. Do you have a pic showing how your stand fits around and in the JBL plinth support?

Also, for others seeing the 2234H woofers, these were the woofers that came with the 4435's when they came to me. The re surround work was done by Orange County Speaker Repair, and you can see the nice consistent dust cap glue lines, new dust caps, and re-use of the OEM gaskets which were in good condition. They knew this was for a vintage JBL monitor restoration so keeping the original appearance was important. Other vintage JBL woofer that had poor or no front gaskets had nice but somewhat different replacement gaskets fitted during their re surround. Just wanted to give credit where credit is due. This will be important when Hobbit checks in with his restoration continuation and showing his similar 2235H woofer.
 
Too cool!

The caster bases are a challenge because the skirt would get crushed if I gently tipped the speakers onto their backs for service. So I made the skirt slotted with plastic strips to slide them on and off from the fronts. The strips will bolt to the existing pallet holes, and the caster board to the existing internal mounting hook reinforcement bars, so no drilling is required.

I'll use felt and Velcro to keep them from rattling, and hold them in place. I also put locking casters in back. Paint the skirts flat black; should look almost stock with maybe a 3/8" gap under them. (Picture has an optical illusion making the skirt look too tall to expose the wheels.)

Sorry for the thread jack!

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