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Author Topic: Cone Protection  (Read 6031 times)

Aaron Kovacik

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Cone Protection
« on: August 14, 2008, 02:01:25 pm »

I have a set of speakers that next summer is going to live outside. They will not be in the direct way of the elements, but if the wind is really blowing they will get wet to a certain point. I would like to protect the cones in some manner, and I was wondering if there were any coatings available for cones. The sound quality must stay very close to the original uncoated speaker, but very small differences are acceptable. Any other solution other than coatings are welcome as well.
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Silas Pradetto

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Re: Cone Protection
« Reply #1 on: August 14, 2008, 03:21:04 pm »

Why don't you do something to the grill to make it more weatherproof? Like put acoustically transparent foam on the back? I personally would not modify a woofer at all, for fear of messing with the function. I'd buy the right product in the first place--Community's WET series come to mind.
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Pascal Pincosy

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Re: Cone Protection
« Reply #2 on: August 14, 2008, 04:11:52 pm »

Scotchgard.
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Silas Pradetto

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Re: Cone Protection
« Reply #3 on: August 14, 2008, 04:28:10 pm »

Pascal Pincosy wrote on Thu, 14 August 2008 16:11

Scotchgard.



I googled that and found that there are a huge number of things that could refer to. Could you be more specific?
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Pascal Pincosy

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Re: Cone Protection
« Reply #4 on: August 14, 2008, 05:11:21 pm »

http://solutions.3m.com/wps/portal/3M/en_US/Scotchgard/Home/ Applications/Fashion_Upholstery/Do-It-Yourself/Fabric_Protec tor/
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Silas Pradetto

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Re: Cone Protection
« Reply #5 on: August 14, 2008, 05:20:44 pm »

That's very cool, does it actually work on cones? (I kind of assume it does since you posted it, but have you tried it or is it just an idea?)
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Pascal Pincosy

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Re: Cone Protection
« Reply #6 on: August 14, 2008, 06:40:37 pm »

It does work.  Smile It will change the character of the sound, but not much...
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Silas Pradetto

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Re: Cone Protection
« Reply #7 on: August 14, 2008, 07:18:01 pm »

The process would not be reversible right?
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Pascal Pincosy

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Re: Cone Protection
« Reply #8 on: August 14, 2008, 07:52:12 pm »

Easily reversible with the aid of a microscope, a lot of free time,  and a *really* small paint scraper Wink

If I were going to leave some speakers outside I would use thick foam over the grill as well as the Scotchgard. I'd also make sure they had a fresh coat of paint on the cabinets. Even with these mods, you will get nowhere near the performance of cabinets designed to be left outdoors.
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Aaron Kovacik

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Re: Cone Protection
« Reply #9 on: August 14, 2008, 11:34:01 pm »

K, now what kind of damage would I be looking at from outdoor use with the mods? I'm not talking worst case scenario of rain dumping into the cones, but speakers shielded by a 2' ledge, foam and scotchgaurd. Serious deterioration over the period of a summer? Mild? I know speakers designed for outdoors would be light-years better but I'm working with the stuff the venue (owned by a local village) has, and budget is minuscule to begin with. If its any help the speakers are Apogee AE-2's, and they already have a decent  grill foam.
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Iain_Macdonald

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Re: Cone Protection
« Reply #10 on: August 15, 2008, 02:06:28 pm »

Aaron,

+1 for the ScotchGuard.

We had a job to supply 350 speakers to a racecourse in the far east.  Average 98% humidity and average temperatures of 100. They were all treated with the product. I can confirm that they were still working 15 years later. Depending on how much you spray, it will change the sound a little. But not by very much. Of more concern is the wood in wooden cabs. A lacquer coating is worthwhile. Also attend to connectors etc. A blob of silicon sealant works well.

Iain.

edit: missed your latest post while I was writing this one. Have a look at the AE2 cones. I seem to remember Ken Deloria saying that they were coated. If they were in someone elses care before you, they might well not have the original cone. Using the ScotchGuard will increase the moving mass Mmd, you will have the slightest loss of the upper range of the driver.
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Aaron Kovacik

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Re: Cone Protection
« Reply #11 on: August 16, 2008, 12:55:24 am »

Go figure, I just took a look at the spec sheet and they are coated...I'm sure mine are to factory original specs, but I'll check just in case. Maybe I'll read up on the gear I'm using next time Embarassed Paint is lacquer and the connections will shortly be sealed. Well,thanks for your time gents.
-Aaron
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