Recone questions for LE15H, 2235H, 2225H

[argieX]

Hi.

I have a pair of LE15H in bad shape, rotten surround, crumpled cone, stretched out spider.

I wonder if it´s possible to make a good driver out of these with a reconing, and what to use them for afterwards.

I have searched the forum for advise but couldn´t find anything for the LE15H. But I found a lot of info. for reconing the 2225H to a 2235H, to make it more suitable for home hifi.

I have some 2225H´s as well (some working, some dead), and while they sound great they lack some bottom end.

I know I can recone them to be 2235H´s, but what about this mass ring I keep reading about, is that included with the new cone, or is it not needed ?

Simply Speakers has some recone kit´s that looks cheap, do you guys have any experience with these kit´s ?

Last question, is the LE15H a better driver than the 2225H or the 2235H ?

Thanks in advance, I´m just starting to learn about JBL drivers, and hope you can help me getting started.

[Robh3606]

I wonder if it´s possible to make a good driver out of these with a reconing, and what to use them for afterwards.


As long as you can get the cone kits. What to do with them?? Well what do you have in mind?? If you are trying to get a vintage system clone off the ground like an S7 of S8 you are going to want them to get the right sound for that period.

As far as bass drivers 2235 have better lowend but are less efficient. The mass ring comes with the kit. If you want an "updated" version of the LE-15 you can leave out the mass ring and make them 2234's The Le-15 and 2234 have very similar bass extension and the 2234 has better powerhandling and greater X-Max. It will also play a good bit higher.

Rob:)

[argieX]

So, do both the LE15H, the 2225H and the 2235H have the same basket and magnet, and can all be made into 2235´s ?

Do you know the kit´s from simply speakers (http://www.simplyspeakers.com/reconekits.htm) ?

I´m not trying to make a clone, but it might be better to keep it a LE15H instead of a 2235, as it´s harder to come by than a 2235, if I want the sound of the LE15 some day.

[hjames]

So, do both the LE15H, the 2225H and the 2235H have the same basket and magnet, and can all be made into 2235´s ?

Do you know the kit´s from simply speakers (http://www.simplyspeakers.com/reconekits.htm) ?

I´m not trying to make a clone, but it might be better to keep it a LE15H instead of a 2235, as it´s harder to come by than a 2235, if I want the sound of the LE15 some day.

With a non-JBL recone parts from 3rd party sources,
who knows what specs your newly modded speaker will have??

Recommend having your recones done with certified JBL parts from authorized JBL shops ...
its the only way to get proper performance from your system.

[argieX]

I just compared the LE15H and the 2225H, and they look identical in basket and magnet, I was not able to compare the magnet gap as the 2225H still has a cone.

Where do I get genuine JBL parts at a good price?
I´m from Denmark, so anywhere in Europe is also fine, though JBL seems to be a lot cheaper in the states.

[Robh3606]

I just compared the LE15H and the 2225H, and they look identical in basket and magnet, I was not able to compare the magnet gap as the 2225H still has a cone.


Try measuring the top plate thickness. I believe the LE-15 is unique with it's underhung coil and uses a thicker top plate.

Rob:)

[argieX]

Yep, you´re right, the LE15H has a to plate thickness of about double the 2225H´s.

Thx for clearing that up.

I can´t find spec. for the LE15H only the LE15A.

[argieX]

I just found spec. on this forum for the LE15H, it models nearly the same as the 2215H.

I don´t think I´ll spend a recone on them a the moment, as I think the 2225 reconed into a 2235 looks much better suited for a 3-way speaker with decent low end performance.

Another question: What if I change the surround on a 2225 to a 2235 foam type, and add 50g to the cone ?

Is the cone and spider similar enough to get me to poor mans 2235, or do I get some sort of unpredictable bastard driver, in need of measuring to determine performance ?

I might go ahead and try this, as the surrounds are cheap, and I can have a woofer tester for T/S measuring.

[robertbartsch]

What are you planning to do with this system; is it for home fidelity, music re-inforcement or something else?

Recone kits can be purchased from the JBL factory by authorized service techs only.

Aftermarket kits from non-JBL sources are NOT recommended.

[argieX]

What are you planning to do with this system; is it for home fidelity, music re-inforcement or something else?

Recone kits can be purchased from the JBL factory by authorized service techs only.

Aftermarket kits from non-JBL sources are NOT recommended.

It´s for home hifi only, that´s why I think the 2235 might be better suited.

Is it really not possible to get genuine JBL recone kits anywhere other than the factory ?

[robertbartsch]

Yeh, JBL re-cone kits are only made availible to JBL factory techs. Do some reading here using searches with "aftermarket kits" if you need to know more.

Factory JBL diaphrams for high frequency compression drivers can be purchased from the factory by non-techs, but that is about it.

[Robh3606]

Any JBL Factory Service center in Europe should be able to get and install the recone kits for you. Go up to JBL-Pro and have a look at the service centers available in Europe

http://www.jblpro.com/pages/contacts/intleuro.htm

Rob:)

[Russellc]

It´s for home hifi only, that´s why I think the 2235 might be better suited.

Is it really not possible to get genuine JBL recone kits anywhere other than the factory ?
Besides the "non JBL issue, (which should be despositive of th issue) I dont believe the 2235H non JBL recones come with the mass ring like the genuine JBL cone does. So if this is the case and you are reconing an old 2235H, pirate the mass ring from the old cone. If it isnt a 2235H, then you wouldnt have the mass ring to pirate, and at best could only make non JBL 2234H drivers.

Russellc

[4343]

Besides the "non JBL issue, (which should be despositive of th issue) I dont believe the 2235H non JBL recones come with the mass ring like the genuine JBL cone does. So if this is the case and you are reconing an old 2235H, pirate the mass ring from the old cone. If it isnt a 2235H, then you wouldnt have the mass ring to pirate, and at best could only make non JBL 2234H drivers.

Russellc

As one with some experience with a particular aftermarket cone kit (Saye) said to be for 2235H, they do not have the same fs, even after break in. It started out higher than a 2234H, so I added a mass ring, but it only came down to be the same as 2234H, even after several weeks of 30 Hz played through it. I gave up on aftermarket at that point and bought genuine JBL.
I did tell Dan that he should find a softer spider next time. He did appreciate the feedback on the fs I was measuring, as he had no way of taking any measurements himself...:blink:

[argieX]

Thank you for all your answers.

I have just got the price for a recone kit from the Danish supplier.

$367 for the kit, and then another $124 if he should fit.

It´s a lot more than I thought it would be, so I might try to put some foam surrounds on a pair of the 2225`s to see what specs they get.
And maybe add some weight to the cone.

[4313B]

It´s a lot more than I thought it would beThe fact that you have to pay approximately double is pretty disgusting.

[Ralph856]

The fact that you have to pay approximately double is pretty disgusting.

Common scenario in the uk with many products:o:

How about getting them shipped from the US and have somewhere else fit them, or would that be impracticle? I guess yes.

[BMWCCA]

How about getting them shipped from the US and have somewhere else fit them, or would that be impracticle? I guess yes.I thought the whole point was you can't get JBL kits except from JBL-authorized repair facilities who must do the install? I suspect I don't really want to know the answer. ;)

[Ralph856]

I thought the whole point was you can't get JBL kits except from JBL-authorized repair facilities who must do the install? I suspect I don't really want to know the answer. ;)

Some of which do the recone incorrectly :rolleyes: