Speaker magnet recharge service in US. - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 11th August 2014, 02:20 PM   #1
jstang is offline jstang  United States
diyAudio Member
 
Join Date: Jun 2008
Default Speaker magnet recharge service in US.

Can anyone recommend a magnet recharge service? Have some vintage 10pound alnico magnets that need recharge....

JohnK
  Reply With Quote
Old 11th August 2014, 04:13 PM   #2
Speakerholic
diyAudio Moderator
 
Cal Weldon's Avatar
 
Join Date: Jan 2004
Location: Near Vancouver
Great Plains Audio
Orange County Speaker
The Speaker Shop
__________________
Next stop: Margaritaville
Some of Cal's stuff | Cal Weldon Consulting
  Reply With Quote
Old 11th August 2014, 05:49 PM   #3
Bare is offline Bare  Canada
diyAudio Member
 
Join Date: Dec 2001
Location: vancouver
Ted Weber was around for a Loong time.
Weber Speakers - Making the world a bit louder each day.
Also has a passable FAQ on whether one actually needs :-) to recharge their Alnicos.
Typically Physical impact 'can ' demag an Alnico ie; Hammer blows or dropping from a significant height, both would result in a totally destroyed driver thou.
Also Over powering.. but that also requires melted even vaporised Voice coil power levels.. Happens, but not overly often

Last edited by Bare; 11th August 2014 at 05:58 PM.
  Reply With Quote
Old 11th August 2014, 07:31 PM   #4
pooge is offline pooge  United States
diyAudio Member
 
Join Date: May 2003
Location: Northern Va.
Quote:
Originally Posted by Cal Weldon View Post
Great Plains Audio
Orange County Speaker
The Speaker Shop
The Speaker Shop no longer remags. He sold his machine to Great Plains Audio.
  Reply With Quote
Old 11th August 2014, 08:08 PM   #5
Speakerholic
diyAudio Moderator
 
Cal Weldon's Avatar
 
Join Date: Jan 2004
Location: Near Vancouver
Good to know. They might want to change their website.
__________________
Next stop: Margaritaville
Some of Cal's stuff | Cal Weldon Consulting
  Reply With Quote
Old 11th August 2014, 09:28 PM   #6
jstang is offline jstang  United States
diyAudio Member
 
Join Date: Jun 2008
Just got a ball park price.... It's worth giving it shot....

Johnk

Last edited by jstang; 11th August 2014 at 09:34 PM.
  Reply With Quote
Old 11th August 2014, 10:59 PM   #7
jmsent is offline jmsent  United States
diyAudio Member
 
Join Date: Jun 2006
Quote:
Originally Posted by Bare View Post
Ted Weber was around for a Loong time.
Weber Speakers - Making the world a bit louder each day.
Also has a passable FAQ on whether one actually needs :-) to recharge their Alnicos.
Typically Physical impact 'can ' demag an Alnico ie; Hammer blows or dropping from a significant height, both would result in a totally destroyed driver thou.
Also Over powering.. but that also requires melted even vaporised Voice coil power levels.. Happens, but not overly often
A large bass pulse could substantially demag some Alnico based woofers rather effectively, without damaging the coil. The TV25-EW in the Dyna A25 was one example that was (in)famous for this. The 4 layer coil and a magnet slug in very close proximity to it were the culprits in that particular design. It depended a lot on the individual design. I recall that there were some old JBL models that were also susceptible. Don't recall which ones.
  Reply With Quote
Old 11th August 2014, 11:31 PM   #8
jstang is offline jstang  United States
diyAudio Member
 
Join Date: Jun 2008
While the speakers are Ohm Fs. They are large 4 ohm full range. 40 years old. They love 300 wpc amps... Mine is a 600 wpc amp I have had several fuse blowing events...

So I tend to believe that recharging these magnets will help...

I am also a great believer in "shaving make a pile...."

So I am going to do this, but I want to get a gauss meter too..

Johnk

Last edited by jstang; 11th August 2014 at 11:34 PM.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Speaker magnet recharger Zen Mod Everything Else 10 17th June 2014 07:58 PM
Electro Magnet Speaker Adriatika Vendor's Bazaar 0 6th September 2009 08:15 PM
Speaker magnet weight siming.guo Multi-Way 9 8th July 2008 11:00 PM
SLA battery Monitoring and Auto Recharge circuit ForestGump72 Solid State 0 16th May 2008 05:45 PM


New To Site? Need Help?

All times are GMT. The time now is 10:36 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2