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How to prevent dust on Amplifier/AVR?

Wharfedale Diamond 225

ItsMe

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100% dust coverage is almost impossible, but a proper equipment cabinet + an air conditioned room will minimize it to an extend
 
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superczar

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I'd say stop worrying about dust.
Modern PCBs and components are fairly durable and if dust had been such an issue, devices with far more complex multi-layered circuit boards and components with much smaller solder pitches would not have lasted at all (think of your phone or the super tiny motherboards on ultra-portables)

Excessive dust accumulation, especially on heatsinks however does cause overheating issues but it takes a long time for that amount of dust to build up.
Having said that, it takes 15 minutes to open up an AVR cabinet once a year or so to lightly vaccum out the deposits.
 

cooltoad

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I use silica gel packs around the electronics and it seems to work in preventing moisturisation.
 

hifitoaster

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I have bought LOADS of used equipment which had more than 35 years of dust collected in them. So far I never encountered anything which was damaged by dust. After 30 years caps and other components can go wrong, which has nothing to do with dust. The components that need heat dissipation always will have the fins in vertical direction which prevents dust to collect on them affecting the performance. Rarely some dumb guy would put heatsink in a way to collect dust in horizontal position. I think dust on other components makes a good cover to isolate them from atmosphere even! Other than aesthetic reasons there is no reason for which an amp must be protected against dust. CD players lens, tape recorder heads and so on are a different story. There are lot of ways in which an amp can get damaged, dust hardly makes up to the list. Like I mentioned earlier, moisture can damage components, not sure about the most modern PCBs
 

swamytk

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I have bought LOADS of used equipment which had more than 35 years of dust collected in them. So far I never encountered anything which was damaged by dust. After 30 years caps and other components can go wrong, which has nothing to do with dust. The components that need heat dissipation always will have the fins in vertical direction which prevents dust to collect on them affecting the performance. Rarely some dumb guy would put heatsink in a way to collect dust in horizontal position. I think dust on other components makes a good cover to isolate them from atmosphere even! Other than aesthetic reasons there is no reason for which an amp must be protected against dust. CD players lens, tape recorder heads and so on are a different story. There are lot of ways in which an amp can get damaged, dust hardly makes up to the list. Like I mentioned earlier, moisture can damage components, not sure about the most modern PCBs
It does make sense. Thanks for sharing.
 

hifitoaster

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Messages
644
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I use silica gel packs around the electronics and it seems to work in preventing moisturisation.
Thats a good idea, but silica gel has a shelf life and gets saturated faster if kept in a room, and to absorb the moisture around an amp u need hell lot of them considering the fact that u need 200gm of silica gel for every cubic meter u want to protect. In a closed container there is very limited humidity coming through. In a room, this is considerably high, which means the gels get into saturation faster and can no longer absorb moisture.

By the way, I lived in Chennai for 5 years, in the last decade and moved to Kerala. Moisture in chennai is nothing compared to kerala(which is a really not a good thing!) My speakers started getting white patches of fungus, gold plated binding posts started getting greenish, copper wires which I though it were OFC started turning dark faster.. also in rainy season, u can feel the wetty feeling on surface of wood and metal. its a nightmare. My equipments started getting complaints after moving to kerala. So dont worry much about moisture in Chennai ;)
 
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