I have bought a pair of JBL LE-14 recently, with the original yellow Lanceloy surrounds. Of course, these surrounds are very ready to be changed. My problem is, that a large number of different surrounds are offered on ebay!! Which one to pick???? Can any of you help me to pick the right ones??
Regards
NikonSP
Denmark
There are several versions of LE14A, with the lansaloy halfroll mounted in different ways by the factory, either inwards or outwards. It depends... maybe you could post a pic of yours to get appropriate advise.
I'll get some pictures made later today and try to upload them
I have made 6 pictures, but I'm only able to upload 5 in 1 go. If the 6th picture is important, I'll upload it later.
The 2 LE-14's have got the following serial numbers: #62163 & #62180
Please let me know, if you need further information and I'll do my best
Regards
Harvey
Looking good, apart from the surrounds. Certainly worth to try and rescue the cones, as long as the spiders are still in a flat position, not too tired and sagging. Here is good info to read in some more recent threads, regarding the residue issue and with two suppliers mentioned
http://www.audioheritage.org/vbullet...E-14A-surround
http://www.audioheritage.org/vbullet...E14A-Surrounds
I did not try one of the european kit suppliers yet that I know of, most of them are being offered on eBay in Germany. In the thread below, they were repaired with new surrounds from looneytune2001 as well
http://www.audioheritage.org/vbullet...-14A-surrounds
Rick can be contacted directly and is very helpful: rcobb at tampabay.rr.com
At the weekend I should receive a pair which I have bought the other day, with white cones. They are supposed to be reconed with factory kits, not refoamed, and with the surrounds attached to the back. Maybe I could post a pic or two for comparison.
Here they are, reconed with C8RLE14A kits.
Some more. The marks in pink are hard to catch, it says LE14A in the upper line.
DCR is 6.3-6.4 on both. Came in suitable JBL LE14x boxes for optimal transport protection. Not sure what a white C8RLE14A, H or H-1 factory recone kit would cost today, let alone two plus labor IF one can find them...
I can second the recommendation for surrounds from looneytune2001. I've repaired 4 LE14A woofers with R. Cobb's surrounds, and they fit perfectly. Carefully remove the old surround, and you can glue the new one on with the roll facing outwards and glued on the front of the cone. There are aftermarket recone kits, and maybe JBL is making new kits again but I don't know.Originally Posted by Fangio
Fangio, those reconed LE14As look great!
That is just wrong!
Why is it just wrong??
JBL speakers most often have surrounds on the back of the woofer cone.
In repairs, attaching to the front is usually done because its easier and quicker
than taking the time to properly clean the back of the speaker cone so you can glue the new foam to the back.
Plus using the front instead of the back creates a (minor) offset to the speaker coil.
But most of all - front glued foams are UGLY!
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I see your point, - but still, the original surrounds on my LE-14s were glued to the front of the cones from JBL(ref. the pictures below) so in that respect, attaching new surrounds to the front of the cones wouldn't be different from the original method. Besides reglueing to the front, covers the area ealier used for glueing, and covering eventual damage to the plast material(from removing ealier surrounds), - but I don't know, - that's why I'm asking the forum
Which supplier and which surrounds would you use, if you were repair my 14's??
Unless I'm having extreme brain fade... didn't some of the LE14's have the lansalloy
glued to the front (as in the earlier pics in this thread, with the inverted surround roll
as well? If so, what is the problem with a front re-surround job on such a unit? (assuming
a properly designed new surround).
I imagine it would be quite difficult to get a clean enough edge on the aquaplas side,
when removing the lansalloy, to get a nice looking rear-cone surround attachment.
If I'm full of it, lemme know
Ah... apparently, I either do too much work between posts or I type too slowly.
... still would query Rick Cobb.
See Fangio's posted links, post #5 above.
Yes, many of the original LE14A surrounds were glued to the front. I believe I have read here somewhere Rick Cobb saying that no one is making a surround for that particular installation these days and the one available usually needs to be glued to the front of necessity for appearance, as has been said. I don't think it's a big issue, myself.
Well, the original surrounds were glued to the front, and removing them takes off some of the white coating. So, glueing them to the front is a nice way to cover your tracks. I plan to do one pair where I paint the cones after touching up the Lansalloy in spots and glue the surround to the back, just to see what happens. I bet they work as well as the others....
Of course a proper solution is a full recone. JBL used to do that for free under warantee back in the 70s and 80, and in that case the replacement cone had a foam surround glued to the back of the cone. All the original Lansalloy LE14s (and LE15s) I see on eBay and elsewhere have the surround glued to the front. If they were reconed by JBL then they will have the surround on the back or the cone, and I sometimes see these for sale on eBay too. This is for LE14A - LE14H, H1etc will be different.
The 4 LE14s I've done so far have measured BL of over 20, so no Alnico magnet loss, and Fs is within spec as well, so no floppy spider either. My theory is that the the stiff surround protects the spider from getting floppy, as can happen when a foam surround rots out and the speaker continues to get use after the surround has gone very soft.
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