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How to eliminate mildew odor

rustycat

70s gear freak
Snagged a pair of KLH Model 32 at thrift for $5! :banana:

Tested good, cabs beat up, but otherwise structurally sound.

Problem is the strong mildew smell, even on the woofer cones.

Suggestions on how to eliminate mildew odor are greatly appreciated.:thmbsp:
 
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Your best bet is probably to gently, thoroughly wipe what can be safely wiped with a damp cloth, then disassemble them a bit and let everything bake in direct sun for a while. Easier said than done when it's November in New England, I know..
 
nice snag!

I don't know how others have done it before, and I tried mildew spray too with and there was no difference. And the speakers also had the smell. I let them air out for a long time. The foam inside the cabinets (Advents) had to be reoved and thrown away, just touching them was enough to stay on your hands for hours. Washed the cabinets out, (still smelled) and as a last resort lit an insence (jasmin:D)an let it burn down. naturally with closed speaker openings. New stuffing and a while of waiting and it was gone, but still a smell of insence.
Now that the waite is over and the speakers have been put all back together there is no smell. Maybe I was wrong but it worked for me. You couldn't put these things into a room without getting the dry-heaves!

I am interested to hear what others have done. :yes:
 
I'm against treating with products like FeBreeze. Unsure if Oust is the same thing or not.

Products like FeBreeze basically bond to the odor and build a "blanket" over it to seal the smell inside this encapsulated barrier.

Basically you are covering, coating the odor, to mask it.

Diluted bleach may work- but with any inner stuffing, it may be better to replace it- it acts like a sponge, wit that stink getting into every open cell.
 
BE CAREFUL WITH BLEACH : I had a situation with mold in a kitchen cabinet : was told to hit it with bleach and couldn't understand why the smell got stronger ( nearly sent my mold-allergic wife to the hospital) : here's what happens : when you "attack" the mold , it senses it : in an attempt to reproduce the next generation it immediately ejects all of its spores at once. If anybody in your family is allergic this can cause a severe asthmatic reaction
First you need to make the mold go dormant : it has to have food (in this case ; wood) and moisture to live ..... remove any insulation (carefully and with a mask: outside if possible) ....let them COMPLETELY dry out ....the mold will then be dormant ....wipe out all you can with a dampened cloth ....then I would hit it with bleach (when only a very small amount remains) This process will take days , if not weeks.
At this point you may want to try a masking or neutralizing agent ......but until you make it dormant and remove all you can , you are wasting your time : in as far as the woofers go : I would be very careful there .....but I am pretty confident that most of the "smell" is actually coming from other things like the foam and cabinet (good case for treated woofers as paper is also food for mold : but if the woofers are to that point I'd be worrying about structural damage to the cone ) Hope this helps . BTW our Home Depot sells a "mold cleaning agent" which is supposed to stop the mold from coming back as long as it isn't given moisture or food
 
1. obtain live skunk
2. remove woofer
3. convince skunk to enter into woofer hole
4. replace woofer
5. play "Master of Puppets" by Metallica at max volume 3 times
6. mildew smell most likely gone

sorry man, just kidding

I would try some lysol and just spray the shite out of it.....
 
I've been using Clorox wipes and equivalent products on moldy album jackets to pretty good effect. I had tried other things, like putting them in the sun for days, and nothing worked. The ingredients for the Clorox wipes are the same as for some Lysol and Fantastic products, as well as generic house brands. Now I buy the cheapest stuff with that ingredient and use my own rags or paper towels instead of the pricy Clorox wipes. Sometimes it takes three or four careful wipings. I even do the insides as best as I can. I have no experience with mildewed speakers, but I think the wipes or even a direct light spray could be OK on the woofer cones. I would get them slightly damp but not saturated. I'd do it a few times.

Incidentally, despite the Clorox name it is NOT bleach.
 
You want to kill the mildew/mold. Masking the odor is just that. There are a lot of household products that will safely remove mildew. You might have to use sparingly or water it down. And if you don't want your speakers smelling like a clean bathroom, shop around. Just use common sense.
 
Perhaps some sort of UV lamp could kill any living organism there. It would be the first step to remove the odor, otherwise it eventually could come back.
 
Great advice here. I've got two pair of Advents (Smaller and Advent/4) that both reek of mildew. I haven't had the desire to touch them since I bought them about eight months ago. I'm dying to try the Smaller Advents. Maybe this is the kick in the butt that I need!
 
I'm against treating with products like FeBreeze. Unsure if Oust is the same thing or not.

:dunno: But here's what they say about it: http://www.oust.com/product.aspx?oust=airSanitizer&section=howItWorks

I started using it when my daughter was in an opera in an outside setting in the summer. The guys' clothes would get quite rank and since the show closed about midnight each night, there was no way to clean the costumes for the next day. The crew would spray them with Fabreze but one principal was allergic to the fragrance in it so he made them switch to Oust.

In the car biz, we always used Frigi-Fresh from BG Products to kill mold odor in A/C systems caused by condensate not getting completely out of the system.
 
If you can borrow an ozone generator, place the disassembled speakers in a spare bathroom and leave the ozone generator on max for a couple of days. Make sure you don't get overly exposed to the ozone - it's arguable whether or not it is harmful to you.

I once bought a pair of surround speakers on eBay that were from a smoker (unknown at the time). When they arrived they smelled so bad I couldn't use them. The ozone generator did the trick, but it took a couple of days.
 
:dunno: But here's what they say about it: http://www.oust.com/product.aspx?oust=airSanitizer&section=howItWorks

I started using it when my daughter was in an opera in an outside setting in the summer. The guys' clothes would get quite rank and since the show closed about midnight each night, there was no way to clean the costumes for the next day. The crew would spray them with Fabreze but one principal was allergic to the fragrance in it so he made them switch to Oust.

In the car biz, we always used Frigi-Fresh from BG Products to kill mold odor in A/C systems caused by condensate not getting completely out of the system.

yeah- I was unsure if Oust was the same as Febreeze. Looks like it is different.
 
If you can borrow an ozone generator, place the disassembled speakers in a spare bathroom and leave the ozone generator on max for a couple of days. Make sure you don't get overly exposed to the ozone - it's arguable whether or not it is harmful to you.

I once bought a pair of surround speakers on eBay that were from a smoker (unknown at the time). When they arrived they smelled so bad I couldn't use them. The ozone generator did the trick, but it took a couple of days.

the automotive ozone generators are amazing. Used them to remove many an overpowering and hard to get rid of odor from a car interior. Typically a few hours up to six.

A world of difference how well it worked.


Problem is, an automotive place usually gets some good cash for a treatment, and these generators aren't something one frequently comes across.
 
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