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<blockquote data-quote="audiobaun" data-source="post: 8023209" data-attributes="member: 634282"><p>I dont remember of any Polk amps to ever have an internal fan.Even MoMo series, which was considered the best series they made, never had internal fans,,the only cooling concept for any amp such as this type, in air induction,more than likely,small holes on the bottom plate, and maybe small holes on the side/top to release the heat.Raising any amp approx 1/2 in&nbsp; of the flat mounted surface,with washers on each mounting tab,will help quite a bit, and by adding a fan, will only be much more beneficial to any amplifier,to run cooler, and perform at its best,.As Spoon has stated, a relay would be necessary if adding an external set of fans,lights ect.,,as a 30-40 amp relay which is very cheaply bought($5-8 bucks or less) that is the right way to do additions for the remote line, and you can add quite a bit that way,without strain.Very easy to incorporate and easily obtained.But, I have ran on single scroll fan on one sub amp without any issues,from the amps power source.No issues.But, I am almost 100% certain that the amp you have does not have an internal fan.Best way to find out is to open her up to see..if new, I dont recommend it for warranty issues, but if bought used...Why not?</p></blockquote><p></p>

[QUOTE="audiobaun, post: 8023209, member: 634282"] I dont remember of any Polk amps to ever have an internal fan.Even MoMo series, which was considered the best series they made, never had internal fans,,the only cooling concept for any amp such as this type, in air induction,more than likely,small holes on the bottom plate, and maybe small holes on the side/top to release the heat.Raising any amp approx 1/2 in of the flat mounted surface,with washers on each mounting tab,will help quite a bit, and by adding a fan, will only be much more beneficial to any amplifier,to run cooler, and perform at its best,.As Spoon has stated, a relay would be necessary if adding an external set of fans,lights ect.,,as a 30-40 amp relay which is very cheaply bought($5-8 bucks or less) that is the right way to do additions for the remote line, and you can add quite a bit that way,without strain.Very easy to incorporate and easily obtained.But, I have ran on single scroll fan on one sub amp without any issues,from the amps power source.No issues.But, I am almost 100% certain that the amp you have does not have an internal fan.Best way to find out is to open her up to see..if new, I dont recommend it for warranty issues, but if bought used...Why not? [/QUOTE]

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