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View Full Version : Cant remove magnet on 2440? Any tricks



Charles0322
10-29-2017, 03:08 PM
I have a damaged throat on a 2440, started to warp and crack and would like to know how to get at it but cant get the magnet off.:dont-know:

Challenger604
10-29-2017, 05:06 PM
I have a damaged throat on a 2440, started to warp and crack and would like to know how to get at it but cant get the magnet off.:dont-know:


You have no way unless you de-magnetize it!

Challenger604
10-29-2017, 05:08 PM
https://m.youtube.com/watch?v=rE029iX1TU4

Mr. Widget
10-29-2017, 07:42 PM
I have a damaged throat on a 2440, started to warp and crack and would like to know how to get at it but cant get the magnet off.:dont-know:People have tried other techniques, but the correct method is to demagnetize the driver and then disassemble, reassemble and then remagnetize the driver.


Widget

1audiohack
10-29-2017, 08:00 PM
I had Speaker Proís do exactly that on a 2440 with a broken throat for me, this month. $55.00 USD plus shipping.

They did a very good job.

Barry.

Challenger604
10-29-2017, 08:13 PM
I had Speaker Proís do exactly that on a 2440 with a broken throat for me, this month. $55.00 USD plus shipping.

They did a very good job.

Barry.

Where Barry?

1audiohack
10-29-2017, 09:02 PM
The guys that came from Orange County Speaker Repair in CA.

A note of small consequence, I supplied the throat. They donít have those.

Barry.

louped garouv
10-30-2017, 09:06 AM
I recall a thread here where a member turned some new throats, maybe that thread can shed some light Charles...



*edit* found it!
http://www.audioheritage.org/vbulletin/showthread.php?29464-Refurbishing-a-pair-of-2440&highlight=turned+throats

mmaki
10-30-2017, 10:03 AM
Once you break the circuit of a Alnico magnet it will loose half it's magnetism. When put back together the driver will be about 6db down from normal.

1audiohack
10-30-2017, 10:19 AM
Yup. No doubt is must be re-magged once re-assembled.

Welcome to Lansing Heritage mmaki!

Barry.

Challenger604
10-30-2017, 03:43 PM
The guys that came from Orange County Speaker Repair in CA.

A note of small consequence, I supplied the throat. They donít have those.

Barry.

On the other side of the world!

1audiohack
10-30-2017, 04:50 PM
Just trying to post a useful reference.

Want your money back? ;)

Barry.

Charles0322
11-01-2017, 07:36 PM
I saw the More10 thread and he told me the info :) de-mag necessary it seems. will give news on project when I go to the speaker manufacturer who has the proper tools about an hours drive.

Challenger604
11-02-2017, 04:43 AM
I saw the More10 thread and he told me the info :) de-mag necessary it seems. will give news on project when I go to the speaker manufacturer who has the proper tools about an hours drive.

Let me know if you found one in Montreal. Iím near Ottawa...
Thanks!
C

Challenger604
11-02-2017, 04:44 AM
Just trying to post a useful reference.

Want your money back? ;)

Barry.

Thanks Barry, It would cost me a fortune to ship anything heavy from here...