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tweaking cooling fans

The fans in my pro amps make too much noise.My thought is to put inline with the 24vdc a potentiometer to reduce voltage and slow the fans down.I have used the amps with the fan disconnected but they get warm to the touch,not hot.I would like a nice breeze across the heatsinks.I picked up a bunch of 3.5k ohm potentiameters.Your thoughts.
kgveteran
unclejeff
1,313 posts
 
Does the manufacturer sell a fan noise kit that will help? Many projection companies do.
fotis_k
128 posts
 
I would think that if the amps only get warm, you might want to consider running your amps without the fans.... I believe the reason why many amps come with fans (in particular 'pro' models) is so that they can be stacked in closed-in environments. We've all seen the local pub that has a stack of amps in a cupboard.
eldartford
4,262 posts
 
Slowing the fans down should be OK. The fans are designed to deal with continuous full power operation which does not occur with home audio use. I have CarverPro ZR1600 amps, and there is a low noise fan mod that is recommended. Reportedly these fans are almost inaudible. I bought the fans, but have not yet installed them because the amps are located in the cellar and fan noise is not a problem for me.
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