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anyone mounted an amp to a trunk lid?


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bigjohnny 
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Joined: September 23, 2008
Location: Ontario, Canada
Posted: December 27, 2008 at 3:40 PM / IP Logged  
I know its not recommended to mount amps to your trunk lid, for many reason, but what if its your only option?
Ive been searching around all day looking for info about mounting amps to trunk lids, and others projects to get some ideas, but Ive found literally nothing on the subject.
Has anyone done this with any success? Does anyone have any good links about it?
I work with alot of materials at work that are very rubbery, and excellent for shock absorption (I make orthotics) so finding a material to dampen shock and vibration shouldn't be an issue.
Ive also been considering using Peltiers for a cooling solution either directly mounted to the amp, or mounted to heatsink/fans that could blow cool air around inside the fiberglass cover i'd like to build.
soundnsecurity 
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Posted: December 28, 2008 at 3:14 PM / IP Logged  
just make sure it's ventilated and that your wires cant get pinched in the hinges in any way. also it will make your trunk lid pretty heavy so you might want to mount a strong air piston to take some of the weight and so that your trunk will pop correctly when you push the button
bigjohnny 
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Posted: December 28, 2008 at 6:10 PM / IP Logged  
Ive been considering the weight, I might have to stiffen the springs, or Ive been considering just taking the springs out and using something like hood lifts.
Another thing ive been toying with is putting them or one of them, on the roof of my interior at the back. I dont think it would obstruct my view, and im fairly certain it could be done.
Im just not sure what i'd use as a crossmember, or how id get it all installed.
paidnfull 
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Posted: December 29, 2008 at 4:07 PM / IP Logged  
All I have to say is Heat Rises
bigjohnny 
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Posted: December 30, 2008 at 7:15 AM / IP Logged  
ya, I didn't overlook that, but my trunk lid is my only real option for mounting my amps.
Obviously im going to have to ventilate them well, but the heat might still be an issue even if i mounted them to the bottom because its all contained.
soundnsecurity 
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Posted: December 30, 2008 at 10:30 PM / IP Logged  
just dont mount it flush with the surface of the trunk so that it can get airflow all around the amp
bigjohnny 
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Posted: December 31, 2008 at 7:05 AM / IP Logged  
what i was considering doing is making a fiberglass cover for it, and inside/underneath the cover have a couple of high powered peltiers mounted to heat sinks to blow cool air around inside the cover, and vent it out into the trunk.
Im not sure how well it would work because ive already burned out two 2a power supplies testing, and couldnt get the heatsink i had very cold, but they also require more amperage to work properly.
they do it with portable coolers, my parents have one that keeps stuff hot or cold.... they just plug it into the lighter and reverse the peltier accordingly.
DYohn 
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Location: Arizona, United States
Posted: December 31, 2008 at 10:22 AM / IP Logged  

Pertiers are not a good idea.  It you need to provide cooling, use fans.

And don't mount your amps upside down, even with fans.

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bigjohnny 
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Posted: December 31, 2008 at 6:28 PM / IP Logged  
why are they a bad idea other than the amount of current they draw, and why not mount the amps upside down?
I would like to still be able to see them, if i hang them from a rack, then they wont be visible.
could i mount them to the roof on the interior of my car? Im already planning on putting in a crossmember and installing an overhead console.
DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: December 31, 2008 at 6:57 PM / IP Logged  

bigjohnny wrote:
why are they a bad idea other than the amount of current they draw, and why not mount the amps upside down?
I would like to still be able to see them, if i hang them from a rack, then they wont be visible.
could i mount them to the roof on the interior of my car? Im already planning on putting in a crossmember and installing an overhead console.

Peltier's are a bad idea because they are very inefficient and they need to be mounted directly to the cooling target.  Plus, you'll probably still need a fan to remove the heat from the Peltier devices.  Mounting most amps upside down will void the warranty as it destroys the designed colling air flow.  Upside down mounting is usually a recipe for very short life span.  You can mount them anywhere you like, just don't do it upside down.  anyone mounted an amp to a trunk lid? -- posted image.

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