Cooling Fans Cross Flow VS. Standard ?

[SQlude1]

Has anybody here every used Cross Flow Fans in a Amps rack install ?

and can any one give me the ups and downs between standard colling fans and cross flow fans ?

VS.

Thanks

Travis

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[MadAudio 10+ year member]

ive used one of those long type fanse before and it didnt do much of anything not worth the price IMHO im actually about to start looking for some fans for my setup and a relay and ill probably go with some type of pc fan

 

[monte_carlo97 10+ year member]

the longer fans do not offer as mcuh circulation IMO. The traditional circular fans are what i use and have the best luck with.

 

[HiAmplidude 10+ year member]

I am running a pair of PC/computer 80mm fans to cool a couple of fairly hot amps in a tightly enclosed rack. Air flow is routed across the heat sinks and out of the rack to chambers into dead air, but I think I should add another pair of fans still (4 total). As it is, though, I never reach "protection" on either of the amps. Generically, electronics just run better when they're cooler.

 

[SQlude1]

Has any one used the PC style fans from Stinger ?

And are they quiet, and what is the life time on these fans ?

 

[monte_carlo97 10+ year member]

no need to buy the name brand ones. You can get on a pc website. Coolerguys.com is a good one to get fans from.

 

[cjjackson85 5,000+ posts]

^Newegg!

 

[jujumantb 10+ year member]

no need to buy the name brand ones. You can get on a pc website. Coolerguys.com is a good one to get fans from.

Make sure they are built to handle 14.4volts though, I had two nice fans die on me from giving them 14.4v. They were fans my dad bought online for his somputer but they were the wrong size or something, but not cheapo ones either, just rated at 12v and not 14.4 stable through trial and error //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[monte_carlo97 10+ year member]

get resistors if they are not 14.4 volts.

 

[monte_carlo97 10+ year member]

^Newegg!

that works too.

 

[jujumantb 10+ year member]

get resistors if they are not 14.4 volts.

Thing is most fans wont tell you what they are rated through, they will just say 12v, but SOME can handle 14.4, I guess I'd just get resistors at any rate to be safe.

 

[jujumantb 10+ year member]

About what fans to use, I also agree traditional is probably your best bet if you have the space, just be sure to make use of the airflow, pulling works alot better than pushing, and make sure to force the air over the heatsink by not leaving much room for it around the sides of the amp.

Heres mine, their is plexi sealing the amp in the forground.. (click for big pic)

 

[SQlude1]

jujumantb

wouldn't it be better to aim two fans to blow fresh air over the heatsinks on one end and have two more fans on the other end to pull the hot air out creating a cross air flow over the heatsinks ?

I see in your picture of your amp rack that you have the plexi glass very close to the heatsink of the amp, and the fans not aimed at the heatsink, how does your method work ?