Magnaplanar SMGa - No Treble

RonnieThomas · 22nd April 2012, 12:10 PM

Hi All
I had these Maggies stored for the last 15 years. Just tried them (they were the best speakers I'd ever had) and there seems to be no treble. The sound is sort of 'boxed up'. Was gonna put them on ebay but maybe they are destined for the trash....
Any advice please?
Thanks
Ron

rob g · 22nd April 2012, 12:24 PM

This might help:
www.diyaudio.com/forums/planars-exotics/127336-diy-magnepan-smga-repair.html

aptquark · 22nd April 2012, 12:25 PM

maybe the lead came off of the foil ribbon? But on both?

rob g · 22nd April 2012, 12:28 PM

Ronnie,
Are you driving the speakers with the same amp?

Is there no high frequency coming from the treble section when you put your ear next to it?

john65b · 22nd April 2012, 12:37 PM

Your treble voicecoil is corroded and no longer connected. Worth fixing, if you ask me.

RonnieThomas · 23rd April 2012, 03:03 AM

Thanks John

Is that something I can do myself please??

Ronnie

andyr · 23rd April 2012, 12:02 PM

Quote:

Originally Posted by RonnieThomas

Thanks John

Is that something I can do myself please??

Ronnie

You haven't bothered to tell us where in the world you are, so it's a bit hard to give you advice.

If you are in the States - send them back to the factory, who will be able to re-lay any corroded drivers.

If you are elsewhere (so shipping is a problem), search the Planar Asylum archives for "delamination repair". Yes, it's something you can do yourself - but you need to get the wire kit sent from the factory. It's not difficult - simply tedious (I re-layed one of my mid drivers).

Regards,

Andy

RonnieThomas · 23rd April 2012, 12:33 PM

Hi Andy

This is the village I live in in England and this is how we all dress !!

Ickwell - Wikipedia, the free encyclopedia

Will take your kind advice and probably have a crack at repairing them myself.

Many Thanks

Ronnie

stokessd · 23rd April 2012, 12:47 PM

These are all good suggestions, but first, check the fuses.

Sheldon

RonnieThomas · 23rd April 2012, 12:54 PM

Thanks

I did notice the there is some 'corrosion' around the fuse holders. I took one of the fuses out and it made no difference at all... the speaker just kept working as before (not very well!!)

Is that an indication of a problem?

I'll clean them and try again

Ron

22nd April 2012, 12:10 PM	#1
RonnieThomas diyAudio Member Join Date: Apr 2012	Magnaplanar SMGa - No Treble Hi All I had these Maggies stored for the last 15 years. Just tried them (they were the best speakers I'd ever had) and there seems to be no treble. The sound is sort of 'boxed up'. Was gonna put them on ebay but maybe they are destined for the trash.... Any advice please? Thanks Ron

22nd April 2012, 12:37 PM	#5
john65b diyAudio Member Join Date: Jan 2005 Location: Chicago	Your treble voicecoil is corroded and no longer connected. Worth fixing, if you ask me. __________________ All right, but apart from the sanitation, medicine, education, wine, public order, irrigation, roads, the fresh water system and public health, what have the Romans ever done for us? Life of Brian

23rd April 2012, 03:03 AM	#6
RonnieThomas diyAudio Member Join Date: Apr 2012	Maggies with no treble Thanks John Is that something I can do myself please?? Ronnie

23rd April 2012, 12:33 PM	#8
RonnieThomas diyAudio Member Join Date: Apr 2012	Maggies SMGa's No Treble Hi Andy This is the village I live in in England and this is how we all dress !! Ickwell - Wikipedia, the free encyclopedia Will take your kind advice and probably have a crack at repairing them myself. Many Thanks Ronnie

23rd April 2012, 12:54 PM	#10
RonnieThomas diyAudio Member Join Date: Apr 2012	Maggie SMGa's No Treble Thanks I did notice the there is some 'corrosion' around the fuse holders. I took one of the fuses out and it made no difference at all... the speaker just kept working as before (not very well!!) Is that an indication of a problem? I'll clean them and try again Ron


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22nd April 2012, 12:24 PM	#2
rob g diyAudio Member Join Date: Jul 2011	This might help: www.diyaudio.com/forums/planars-exotics/127336-diy-magnepan-smga-repair.html

22nd April 2012, 12:25 PM	#3
aptquark diyAudio Member Join Date: Jun 2010 Location: MS Blog Entries: 1	maybe the lead came off of the foil ribbon? But on both?

22nd April 2012, 12:28 PM	#4
rob g diyAudio Member Join Date: Jul 2011	Ronnie, Are you driving the speakers with the same amp? Is there no high frequency coming from the treble section when you put your ear next to it?

23rd April 2012, 12:47 PM	#9
stokessd diyAudio Member Join Date: Nov 2002 Location: Fort Wayne, IN	These are all good suggestions, but first, check the fuses. Sheldon

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