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Audiobeer
10-14-2003, 04:25 PM
I have these 4 speakers that came out of a radio station in Rochester Illinois. All the speakers and drivers appear original except for the LE 10-H1 which is perfect. The speaker wires connecting to it has the attatched cap. Do you think they used this to compensate for the difference between the 2 woofers? None of the other 3 have them.

Audiobeer
10-14-2003, 04:25 PM
So which wire is positive? Green w/black stripe? I have two more woofers for the one removed and the one you see in desperate need of some M.E.K.

4313B
10-14-2003, 05:08 PM
Hello Audiobeer,

If you have 4313B's with the LE10H's then there is no difference between the LE10H and the LE10H-1 except the color of the cones. LE10H-1 has the white aquaplas on the front and the LE10H has the white aquaplas on the back. The LE111H is also the same except it's frame is painted black instead of plain aluminum like the LE10H and LE10H-1.

Usually any wire with a stripe in it goes to the black terminal on the driver.

The 4313B and S15 used the LE10H, the L110A used the LE111H, and the L96 used the LE10H-1.

The original 4313 and L110 used the LE111A which is a different
animal.

*****
LE10H - C8RLE111H - black front - white aquaplas back - silver faced frame
LE10H-1 - C8RLE10H-1 - white aquaplas front - black back - silver faced frame
LE111H - C8RLE111H - black front - white aquaplas back - black faced frame

The C8RLE10H-1 and C8RLE111H have identical mass, stiffness, compliance, spider and voice coil.
BTW, it appears the C8RLE10H-1 kit has been discontinued.

4313B
10-14-2003, 05:14 PM
Link to 4313B schematic (http://www.jblproservice.com/pdf/Network%20Schematics/3113B%20Network.pdf)

Audiobeer
10-14-2003, 05:44 PM
Thanks Giskard. I wanted to get rid of the white faced driver and back to original. Thanks for the help again!

Audiobeer
10-14-2003, 06:48 PM
The race is on for this 6 pack by the weekend, I'm keeping 2 of these!

GordonW
10-14-2003, 08:01 PM
The original 4313 and L110 used the LE111A which is a different animal.



Lighter weight cone in the LE111A, right? I don't remember there being any aquaplas on it, whatsoever?

Regards,
Gordon.

Audiobeer
10-14-2003, 08:28 PM
Here's what I removed. What was that cap for?

Audiobeer
10-14-2003, 08:28 PM
Here's another. It's not a recone but as new!

4313B
10-15-2003, 04:56 AM
"What was that cap for?"

Your picture shows an 8.2 ohm resistor.

Looks like someone spray painted the front of that LE10H-1 frame since they come from the factory silver.

boputnam
10-15-2003, 06:59 AM
Originally posted by Audiobeer
So which wire is positive? Green w/black stripe? No, that one is NEG. But, follow Giskard's guidance and stay "color coordinated". As will all JBL cabinets, solid color goes to RED terminal, striped goes to black. Except... :duck: for those cases where the wires are ALL solid, and there color goes to RED and BLACK to BLK terminals.

As an aside, in the 4313B, the LF is running opposite polarity to both the MF and HF. I've played around, and factory phasing (to me...) is best. Definately keep the MF/HF phased together, IMHO.

Man, Audiobeer, you gotta thing for them 4313B's don't ya? :yes:

Oh - and I wondered whether that resistor was put across the terminals as a safety fuse...? But, since they were obviously in there, nosing around, are you sure they have not altered the network in some insidious (but well intended...) manner? I recall that pair of 4313B's I got from you - someone had butchered those networks! :scold: You might take some pics of the networks, if possible, and we'll be able to tell if they've been futzed with...

4313B
10-15-2003, 07:35 AM
Yeah, let's just rebuild those networks anyway :)
Might as well go biased ;)

boputnam
10-15-2003, 08:03 AM
Originally posted by Giskard
The original 4313 and L110 used the LE111A which is a different animal. :hmm: Gimme some more on that - one of our kind just snagged a pair off eBay, and he'd wanna know (but he's kinda hard to reach and has gone quiet here, of late... :spchless: ).

4313B
10-15-2003, 08:36 AM
Here are the stats but you can use BB6P to play around with the LE111A and the LE10H in the 4313 enclosure as well as the L96 enclosure.

4313B
10-15-2003, 08:38 AM
Originally posted by GordonW
Lighter weight cone in the LE111A, right? I don't remember there being any aquaplas on it, whatsoever?

Regards,
Gordon.
It appears the LE111A moving mass was the heaviest.

Audiobeer
10-17-2003, 06:24 PM
Here's an update! All that's left is the backs and taking the gloss off the finish.

Audiobeer
10-17-2003, 06:26 PM
Here's the backs with a touch of filler to fill the slight nicks that became visible after the first coat of flat black finish.

boputnam
10-17-2003, 06:50 PM
So, where'd you learn all this stuff? :confused:

Audiobeer
10-17-2003, 07:06 PM
I used to be a refinisher for Bullocks in St. Louis. That guy was the greatest! He had so much work and charged the most outrageous prices. I remember Him walking into August A. Busch's house in the 70s and quoting a price of $4000 to refinish a Dining Room Table. When Busch asked when He could do it Dave told Him 8 weeks was as soon as He could get to it! He retired at age 48! I only worked there for 3 years but it was long enough to learn some tricks.

boputnam
10-17-2003, 10:02 PM
Originally posted by Audiobeer
I used to be a refinisher for Bullocks in St. Louis. Ah HA! When I completed grad school, my first job was on the new "Lead Belt" (Viburnum), based in Salem, MO. The antiques supply there was amazing (even beyond that of the JBL cabinets recently on eBay... ;) ), and we got heavily into furniture refinishing. The "Bullocks" name was renowned then, and price accordingly. So, being fresh outa Uni, and penniless, we learned it "along the way". Nasty work, to be sure. But I still have quite a few bow-front quarter-sawn oak wardrobes and "Hi-Boys" from that "era". Nice.

Thanks, Audiobeer! I've saved the entire Thread as as many pages of "Web Page, complete". A treasure trove of experience! :thmbsup:

Audiobeer
10-18-2003, 04:28 PM
Done in time for the weekend! A little M.E.K. to clean the repalcement woofer and I'm done!

4313B
10-18-2003, 05:07 PM
How cute! :p
My favorite little "bookshelf" loudspeaker all fixed up :bouncy:

Great work Audiobeer!!! :cheers:

Audiobeer
10-18-2003, 05:23 PM
Crap! 3 of them sound fantastic! The 4th has a problem with the woofer. It's suttle and I may be imagining it. I wish I had a channel invert on the amp to verify it. It's just not as crisp as the other 3 in the bass area. I have one more woofer to try and if that dosen't work I have to buy one! These woofers run $200 + .....That sucks!

Audiobeer
10-18-2003, 06:09 PM
Yep, That's what it was! I installed the backup woofer but it has a crapload of glue all over it from a refoam! This will take forever to get this to look like a professional did it, if it can be done at all! :banghead:

Audiobeer
10-18-2003, 06:21 PM
Here's what it looks like after the 1st round of M.E.K. Look's like crap! The surrounds have dimples now which I hope will go away. Looks like it's back to the drawing board!