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  #1  
Old 21st April 2020, 07:05 PM
colin.hepburn colin.hepburn is offline
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Default How to Clean up faded speaker cones

Hi all
Has anyone got any ideas on what to use to brighten up faded speaker cones I have my Wharfedale 6.5in Kevlar drivers and my Fostex 126Es

The Fostex 126 cones are aging and fading back to banana yellow from the bright white they were when new I would like to get them back to the white again any ideas on what I could use on them that will not damage the drivers



And the yellow 6.5 inch Wharfedale Kevlar Drivers. where a victim of chip pan oil smoke some years back which would not clean off I was thinking of dying them black so thought about maybe using black printer ink which I have on hand

Any other ideas would be very welcome
Thanks
Colin
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  #2  
Old 21st April 2020, 08:25 PM
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Phil Y Phil Y is offline
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Default Re: How to Clean up faded speaker cones

Hello Colin,

Probably not what you want to hear but what about grills?
The cones are faded on my Tannoy DCs (paper cones) and look fairly awful. They look much nicer with the grills on in my view, even though I suppose this is rather old fashioned these days.The difference in sound is pretty small.
Although I occasionally remove them for a "serious session" the vast majority of the time I am happy to leave them in place.

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Last edited by Phil Y; 21st April 2020 at 08:40 PM.
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Old 21st April 2020, 08:40 PM
colin.hepburn colin.hepburn is offline
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Default Re: How to Clean up faded speaker cones

Hi Phil/All
Yes you are right about the grills it’s the most logical way to go I just thought it would be good to bring the look back into the Drivers so will have to make new grills anyone know of good foam types in sheet-form to use
thank
Colin
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Turntable Rega 3 custom RB250 with ortofon 2M Blue /other goldring 1042 /WD phono2 /WD CF pre custom converted /WD psu2 /home built JE Labs Single Ended 6SL7/KT66/Speakers Frugal horns Mk1s
Other turntables AR EB101/Thorns TD150mk2/Thorns TD160mk2


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  #4  
Old 21st April 2020, 10:16 PM
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Greg. Greg. is offline
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Default Re: How to Clean up faded speaker cones

My thrupence worth is that the Fostex’s are a too delicate cone material for any vigorous cleaning. Actually, I think the yellowing is probably natural as they are made from natural fibre. I think it is a case of live with it or follow Phil Y’s lead on grills.

Regarding the Wharfdale’s, being Kevlar they will tolerate more vigorous cleaning, but if you have smoked oil deposits on them which you’ve not been able to clean off, I think you’re probably stuffed on this one as well. Whatever dye, stain or varnish you apply, if it isn’t oil/grease resistant, nothing, including the printer ink you suggest will fix on the greasy bits, so you’ll end up with a very imperfect finish.

I second Phil’s suggestion. Do a google on diy speakers and you will find there is plenty of acoustically transparent speaker cloth available. I would suggest you don’t consider foam if you want maximum transparency. Cloth fitted to a light frame is good. For fixing, if you obtain some small disc magnets (eBay); bury a few of them in the baffles and have correspondingly fitted magnets on the frames. Easy fitting and removal every time
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Old 22nd April 2020, 07:26 AM
bob orbell bob orbell is offline
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Default Re: How to Clean up faded speaker cones

Hi Colin, chip pan smoke, bloody hell you like a good fry up , this may be a waste of time but, Isopropyl Alcohol (IPA) may work, it is available for chemists. Steady up with the fry ups chum. Bob
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Old 22nd April 2020, 07:47 AM
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pre65 pre65 is offline
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Default Re: How to Clean up faded speaker cones

Colins probably been frying Mars bars.
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