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I was after the possibility to recone to something with lower Fs and lower Qts, is this chassis reconable to someting else than 2213, 123 etc?

Thank you!

I got a pair of 2213H, one of which is completely destroyed.
Since original cones are unobtainable, can these woofer chassis be reconed to something else?

Thank you

Here is a new video by the same guy on how to take off the old throat from the front without dismantling the driver!

https://www.youtube.com/watch?v=rMsfvY6F9Gg

That would be so very nice of you!

Thank you!

There are alot of people with cracked throats

Dear Eric, the video is not mine so I have no idea about it. Point is that the gagnetic strength is not only decreased due to the striking with the hammer, I believe its the magnetic strength is...

This is the obvious, what if there is no availability of mag-demag utility in a country?:bouncy:

The guy posting the video is trading these on ebay.pl

100 euro per pair, not that bad, but there is the catch of magnetization strength loss, maybe it can be installed through the front?

I really think you are mistaken, if you search in this forum you will find in so many threads that if you break the magnetic circuit by removing the plate of the driver the alnico magnet looses a big...

Very good thread that was really missing from the forum! Accidentally i just today posted a video of 2441 disassembly that might be helpful.



Here is the video:...

Here is a guy dismantling a 2441 driver and replacing the plastic throat with a new bronze one. My question is the obvious, since after this operation the magnetic circuit of the alnico magnet is...

Is anyone familiar with any diaphragm with voice coil diameter of 75.5mm or 2.972 inches? I am looking for such a phenolic type diaphragm for a pait of RCA drivers that I love so much but I am...

I would prefer to repair the existing ones with the original material but it seems that I am the only one who faces this problem or everyone else is just using recones which in my case are both...

Dear Friends,
I know this topic went around and around countless times and I did tried very hard to read everything I could find upon this "unobtainium" substance but I at the end I am completely...

Since I have a pair of original Tannoy HPD385 crossovers at hand I can measure the inductance of the autotransformer as well as the RDC if anybody is interested on this. I would love also to see...

That is enough info anyway, 0,5-0,6ohm is easily achievable, maybe I can try to achieve this even with no laminations.

Thanks again

Wow! that was fast!
Exactly what I needed, is this measured or calculated? Also, do you possibly have any ohm reading of the entire choke and maybe the gauge of the wire used?

Thanks again,
...

I would like to ask if anyone, ever measured the actual iductance of the multitap inductor as used in 3115A crossover. I am about to build this, but it is impossible to find any hard data on this....

You are very right Jakob, my typing mistake, the dias are 16ohm as they read 8,7ohm RDC.

Thank you very much for the comprehensive answer David. You are very right in all of your thoughts and I agree.
I finally gave a listen to these drivers and I can comfortably say I am very...

I already red this thread but did not really arrive to a "verdict".
The problem is that I do not have the system yet as i am in the process of gathering the components and building the bass horn....

Just recently, I accidentaly bought a pair of 2441s with 2450SL (aquaplas coated) diaphragms installed from local JBL engineers. What I wanted was a pair of original 2441s with 2441 diaphragms but...

Dear Friends,
I got an excellent pair of 2205As but since these are very old (NOS)I would like to "freshen up" the surounds as these seem a bit brittle, in fact there is a tiny crack at the ...

Frgot to add another woofer possibility, this is the JBL2205, a very nice 15" that can be used in bass reflex and in horns, the good thing about those is that can be had with little cost and are not...

Dear ARK, I am currently having the exact driver horn combination you have. I am using it on top of a back loaded horn with Tannoy 15" monitor HPD woofer and I am really very happy with the dynamics...