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In Reply to: RE: Supplementary heat sink? posted by LtMandella on September 13, 2020 at 10:44:44
Image: Vornado Zippi
Your muffin fan should be sufficient if you place an aluminum heat sink coated with thermal paste on top of the enclosure, with the fan blowing down into the heat sink fins.
Folks often use a 12V fan with a 6V power supply to keep the fan noise very quiet.
Another option could be to use the very quiet, compact Vornado Zippi soft blade table fan. The metal stand allows the airflow to be aimed down onto the top of the enclosure. It pushes a lot of air with no noise, whatsoever.
Follow Ups:
I can easily hear mine across the room at low speed so, in my opinion, it's not suitable for audio systems. It's now on my bench blowing solder fumes away from my face.
Maybe you got a bad unit, or you have super ears :)
sex after 70 is like trying to play pool with a rope
I've used these for years and they're dead quiet.
It's not motor noise. It's the noise of a fan blowing air.
I use a Zippi blowing right in front of me while using a computer.
While on the low speed it's dead quiet. On the high speed only a slight whirling sound can be heard.
Nothing that even low-volume music levels are affected by, IME.
The zippi fan is working great, very very quiet, I would even say silent at the low speed, and at low speed it has reduced the top plate temp of the case very significantly. Can't say it is even hot now, just warm.
I don't have a non contact thermometer handy but the temp is certainly safe now from premature failure.
Don't know how long the fan will last running 5-10 hours per day but it is very solidly built and only cost $15 delivered from Amazon. And of course I will organize things better (moving this month anyway into a new home)
sex after 70 is like trying to play pool with a rope
thanks Duster, I have one arriving today from Amazon.
And if I don't like it for the amp I can always use it somewhere in the house here in Las Vegas...
sex after 70 is like trying to play pool with a rope
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