IEM Cleaning Mesh, muffled sound???

Jan 18, 2018 at 2:43 PM Thread Starter Post #1 of 10

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So my MA750 had a lot of wax deposits at the mesh, so I just took a fine soft brush, dabbed a small amount of 75% isopropyl alcohol solution on it, and gently tried to clean the mesh with it.

The earphones now are sounding very muffled and sort of like water is inside. Tried drying up them with a hot air blower, still no improvements.

The mesh doesn't seem to be removable at all, so is there any way to fix the sound without damaging the mesh?
 
Jan 18, 2018 at 10:55 PM Post #2 of 10
Try letting it air dry for a while. Don't use a hot air blower as depending on the material of the membrane, you might damage it.
 
Jan 19, 2018 at 3:27 AM Post #3 of 10
So I left them overnight under slightly warm air, and they are still sounding very muffled.
Bass is overpowering everything, sound is almost half (have to put double the volume to listen to music), and mids have taken a very hard hit.
I think either some gunk went inside and jammed the driver, or the driver itself is damaged?
 
Jan 19, 2018 at 8:35 AM Post #5 of 10
So I left them overnight under slightly warm air, and they are still sounding very muffled.
Bass is overpowering everything, sound is almost half (have to put double the volume to listen to music), and mids have taken a very hard hit.
I think either some gunk went inside and jammed the driver, or the driver itself is damaged?

Depending on how much alcohol you poured into it, it could have permeated past the filter and got stuck on the other side, making it harder to evaporate. Evaporation only occurs on the surface so considering that IEMs have small bores, it would take quite a while for it to evaporate fully if there was a lot that got in. Either that or the driver is busted, but if the driver was busted, it'll probably sound more distorted than muffled.
 
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Jan 19, 2018 at 9:32 AM Post #6 of 10
When I clean my IEM mesh I hold them high and facing down so any liquid I use won't pour down inside the bore.

damn, should have thought of that :face_palm:

Depending on how much alcohol you poured into it, it could have permeated past the filter and got stuck on the other side, making it harder to evaporate. Evaporation only occurs on the surface so considering that IEMs have small bores, it would take quite a while for it to evaporate fully if there was a lot that got in. Either that or the driver is busted, but if the driver was busted, it'll probably sound more distorted than muffled.

It was just a dab of alcohol, I sprayed the brush with fingers before that as well to make sure minimum amount is on it. Probably some alcohol went deep in the brush and got poured into the housing. I don't think they are fixable now, it should have dried by now. Have raised RMA request though, let's see if they entertain it or not. My mistake only :triportsad:
 
Jan 19, 2018 at 11:53 AM Post #7 of 10
I've had similar negative experiences with 75% isopropyl alcohol. I'd suggest using 99% alcohol (the problem seems to be the water content), and then giving the headphones enough time to dry. I also, don't let them soak for too long as you can dissolve the glue and loosening the diaphragm.
 
Jan 20, 2018 at 12:04 AM Post #8 of 10
I've had similar negative experiences with 75% isopropyl alcohol. I'd suggest using 99% alcohol (the problem seems to be the water content), and then giving the headphones enough time to dry. I also, don't let them soak for too long as you can dissolve the glue and loosening the diaphragm.

So the 75% alcohol is a no-go from now on. I couldn't find the 99% solution nearby where I live, so got the 75% one.
RMA is accepted, so I believe it's better to send them now.
 

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