Reparing Magnepan SMGs tweeter

stolbovoy · 20th December 2007, 11:18 PM

I have two cracks in the tweeter aluminum stripes and looking for material to fix it. This stripe are glued to mylar film. I've tried to use some aluminum foil on conducted glue, but it doesn't want to stick for some reason. What I could use to fix it? Some conductive glue or more reliable brand of aluminum foil on conductive glue perhaps?
I would appreciate advice.

Thanks,
Viktor

john65b · 21st December 2007, 03:33 AM

I have replace maggie tweeter voice coils many times - not that difficult - 36ga copper magnet wire from rat shack. Google magnepan voice coil repair Peter Gunn.

A little acetone will remove the glue and wire. Glue the 6 passes (?) to mylar with fresh (must be fresh or won't work right) DAP Weldwood from home depot and you will never have to replace them again.

Otherwise, I have heard of some people retracing the missing sections of voice coil with metalic PCB tracing pens, and heard someone else connecting wire sections with blobs of graphite door lock lubricant.

mightydub · 21st December 2007, 05:24 AM

call Magnepan, they'll send you a repair kit with everything you need (wire, adhesives, solder for the aluminum wire, instructions) for a very reasonable price. I repaired my MGIIbs years ago, it was easy and with a little care it ends up like new from the factory. I posted a detailed description of the process about a year ago.

Ouroboros · 21st December 2007, 06:51 AM

I must finally get round to buying the ribbon replacement kit from them to repair one damaged true-ribbon tweeter in my old MG-2.5R speakers. As I'm in the UK, it would make life so much easier if I could communicate with them using email. Does anyone know if there is an email contact for Magneplanar yet? (Or why they're so Luddite that they still have to be contacted by telephone!)

stolbovoy · 23rd December 2007, 02:13 AM

Thanks for advices. I've read Peter Gunn's article and I hate Super 77 too

20th December 2007, 11:18 PM	#1
stolbovoy diyAudio Member Join Date: Jul 2004 Location: MD, USA	Reparing Magnepan SMGs tweeter I have two cracks in the tweeter aluminum stripes and looking for material to fix it. This stripe are glued to mylar film. I've tried to use some aluminum foil on conducted glue, but it doesn't want to stick for some reason. What I could use to fix it? Some conductive glue or more reliable brand of aluminum foil on conductive glue perhaps? I would appreciate advice. Thanks, Viktor

21st December 2007, 03:33 AM	#2
john65b diyAudio Member Join Date: Jan 2005 Location: Chicago	I have replace maggie tweeter voice coils many times - not that difficult - 36ga copper magnet wire from rat shack. Google magnepan voice coil repair Peter Gunn. A little acetone will remove the glue and wire. Glue the 6 passes (?) to mylar with fresh (must be fresh or won't work right) DAP Weldwood from home depot and you will never have to replace them again. Otherwise, I have heard of some people retracing the missing sections of voice coil with metalic PCB tracing pens, and heard someone else connecting wire sections with blobs of graphite door lock lubricant. __________________ "I speak Spanish to God, Italian to Women, French to Men, and German to my Horse" - Charles V

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21st December 2007, 05:24 AM	#3
mightydub diyAudio Member Join Date: Dec 2006 Location: Where the sky loves the sea	call Magnepan, they'll send you a repair kit with everything you need (wire, adhesives, solder for the aluminum wire, instructions) for a very reasonable price. I repaired my MGIIbs years ago, it was easy and with a little care it ends up like new from the factory. I posted a detailed description of the process about a year ago.

21st December 2007, 06:51 AM	#4
Ouroboros diyAudio Member Join Date: Dec 2003 Location: Nottingham UK	I must finally get round to buying the ribbon replacement kit from them to repair one damaged true-ribbon tweeter in my old MG-2.5R speakers. As I'm in the UK, it would make life so much easier if I could communicate with them using email. Does anyone know if there is an email contact for Magneplanar yet? (Or why they're so Luddite that they still have to be contacted by telephone!)

23rd December 2007, 02:13 AM	#5
stolbovoy diyAudio Member Join Date: Jul 2004 Location: MD, USA	Thanks for advices. I've read Peter Gunn's article and I hate Super 77 too

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