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moondogg911

Member - Posts: 2

Joined: September 28, 2009

Location: Florida, United States

Posted: September 28, 2009 at 11:53 AM / IP Logged

I am in need of two fans about 4"x4" but my question is how do I connect the fans for push/ pull? I wanna blow air thru a panel to keep sub amp from getting too hot. Do I need relays? Can someone walk me thru the whole thing, Thank you!

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jimi77

Member - Posts: 27

Joined: August 10, 2009

Location: Colorado, United States

Posted: September 28, 2009 at 12:14 PM / IP Logged

Typically you don't benefit much from a push/pull. You're better off just going "pull" in most cases. Usually you would use the remote out on the HU to trigger a 12v relay and the relay to power the fans.

You talking to me???

P9 Combo

ID CD1-Pros

Focal Utopia Midbass

10" Brahma

Clarion APX amps

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i am an idiot

Platinum - Posts: 13,667

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: September 28, 2009 at 12:33 PM / IP Logged

I have seen more than a few fans that have melted due to installing them in a pull through configuration. If you do intend on having one fan upstream from the heat source, make sure it has a metallic chassis, and prefferably metal blades. If using plastic fans, make them push air over the amps.

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KPierson

Platinum - Posts: 3,527

Joined: April 14, 2005

Location: Ohio, United States

Posted: September 28, 2009 at 1:22 PM / IP Logged

You don't connect the fans any different for a push/pull configuration - the setup is all dependent on the orientation of the fans themselves. Most fan blades are only designed to rotate in one direction, but by changing the direction the fan is blowing you can change whether it pushes or pulls air.

Kevin Pierson

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fans

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