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How do I position fans on amp?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=39246
Printed Date: April 28, 2024 at 11:44 AM


Topic: How do I position fans on amp?

Posted By: hopesfall
Subject: How do I position fans on amp?
Date Posted: September 16, 2004 at 7:59 PM

I got a RF 501x amp, and I am planning to put some fans on it, since the area of the amp doesn't get much air flow. Where would I position the fans, and what fans would work best on it? I was thinking of making a small wood frame and attaching computer fans to it, Im a noob so I need advice, Thank you.



Replies:

Posted By: Ketel22
Date Posted: September 16, 2004 at 9:05 PM
computer fans work well and you would want to make atleast 1 on either side...1 fan pushing air across the amp and the other pulling the air from the amp.

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Quad L Handyman services




Posted By: dudek38
Date Posted: September 16, 2004 at 9:12 PM
depending on your setup is what you shall choose for fans.
i personally like "sqirrel fans" dont ask me where that name came from. anyway i believe they are called cylinder fans. they are 8" x 1.75". they are great cuz u can mount them on your amp rack, etc, right beside your amp. and they really put out some air, blowing right through the cooling fins on your amp.
other fans need a special rack and could get ugly looking if not done right.
dont bother with pc fans, they are not dc.
if your amp isnt visible and you dont care about beauty, you mount a standard square fan 3"x3" on amp with 3m doubleside tape.
if i were you, i would make sure your amp is getting hot and is in need of a fan, then i would go with what i said earlier. in your case,you can run a seperate power source but can get away with running it off the remote wire and a ground.

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owner of
Motion Marine & Car Audio
the florida keys




Posted By: Francious70
Date Posted: September 16, 2004 at 10:00 PM
dudek38 wrote:

dont bother with pc fans, they are not dc.


Yes they are.

Paul




Posted By: hopesfall
Date Posted: September 16, 2004 at 11:17 PM
Ok so say they are DC, could I cut the harness off of them and find the ground and positive?




Posted By: thapimpfromchi
Date Posted: September 16, 2004 at 11:21 PM
yep. u can even put them on a nifty little toggle switch.

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1990 Honda Civic HB:
Clarion DXZ545MP H.U.
2- 6.5" Power Acoustik interiors
Diamond Audio 600.1 amp
Diamond Audio 15" M6MKII
Pyramid PB881X 4 CH. Amp




Posted By: dudek38
Date Posted: September 16, 2004 at 11:39 PM
why do people mess with pc fans? why bother when there are fans in the 12 volt industry? and would someone explain where the dc power is coming from inside the pc.

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owner of
Motion Marine & Car Audio
the florida keys




Posted By: djmoose
Date Posted: September 17, 2004 at 2:00 AM

dudek38 wrote:

why do people mess with pc fans? .

Because they're cheap.

dudek38 wrote:

why bother when there are fans in the 12 volt industry?

Because retailers mark up the price on the same exact pc fans to make a ton of money off of people that don't know any better.

 

dudek38 wrote:

and would someone explain where the dc power is coming from inside the pc.

From the power supply. You know those project DC power supplies you can get at radio shack? Pretty much the same thing.

 

All that being said...I use a squirrel cage fan myself… it was more convenient for where I needed it to be.





Posted By: Francious70
Date Posted: September 17, 2004 at 9:09 AM
dudek38 wrote:

why do people mess with pc fans?


Because they're cheap, easy to use, quiet, and can move some major air. Think about it, if a 10cm fan is cooling a processor from 300*F down to 98*F, don't you think it would work well to keep your amp cool too??

Paul




Posted By: jbrew
Date Posted: September 17, 2004 at 2:01 PM
just a bit of info on an RF amp.  up until 2004 there fin design stay the same, if you have the amp mounted flat it will over heat, but  "if you mount it standing up the air flows though the fins to cool it"   (Mark Fukuda- RTTI)  this is what RF rec.




Posted By: hopesfall
Date Posted: September 17, 2004 at 2:35 PM

You guys are great helping me out, Now to top the topic with a ending, Could I get away with cooling jut the bottom, or just the top of the amp, or is both required?





Posted By: hopesfall
Date Posted: September 17, 2004 at 2:36 PM
Could I get away with just cooling the bottom of the amp?




Posted By: Francious70
Date Posted: September 17, 2004 at 3:44 PM
Umm, it would be most benificial to you to cool whichever side of the amp gets the hottest. For many amps, that's the top, because the heatsinks are there. Find your heatsinks and theres you hot-spot.

Paul





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