Hu, I've always heard fans put DC current into the electrical system. Maybe that's bunk. Does anyone know for sure
Amp fan cooling without dc current in the 110 line
So I just finished renovating an old TV console, modifying it by removing the TV and adding shelves to hold my gear within it. While it has vents on the sides, bottom and back, I’m sure my amp will get super hot inside. So I’d like to put a little fan in the cabinet to cool it off. But I’ve always heard those little computer fans put a lot of dirty DC current in the AC lines, resulting in noise in the amplifiers presentation.
So question is, how to avoid that.
So question is, how to avoid that.
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- 12 posts total
The fan should be put on a top of the Amplifier where is the hottest to suck the hot air out. Check this out. Many different options. http://www.ebay.com/itm/AV-Cabinet-Home-Theater-Cooling-fans-w-digital-thermostat-multi-speed-contro... |
Half wave rectification puts a little bit of DC on the AC line, but decent SMPS’s are full wave and a lot of muffin fans won’t even work right on half wave. A little 5V wall wart will power one just fine. That said, putting an amp in a box that requires active cooling is a mistake. I’ve built computers with up to 6 120mm fans to keep things cool and you’re in there blowing out dust every 3 months in a religious sort of way. I’d never think of putting my F5 in a cabinet. I wouldn’t even put it on the second shelf of a rack. |
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