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Has anyone mounted their amps under the rear deck. I just dont want the amp to be seen everytime I open the trunk if it is mounted on the back seat.

 
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put it on the back of your sub box or on the top of it or under one of the seats in the car...i wouldnt recomend trying to mount it under the rear deck

 
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its done all the time.

you take a piece of 1/4 inch board, and mount it to the rear deck. you will most likely need spacers for this, that way the surface is even, and the mount is solid.

then simply screw the amp to teh board, and yoru set!

 
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dont fix it to the box.....that is terribl;e for the box......just think even if the screws dont penetrate the other side of the box....the possiblity of a sound leak is very high. just mount it hanging from the back dash very simple....or the back of the seat. If not there should be enough room under the floor to mount it and a fan!!

 
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There isn't any problem wiht mounting amps on the back of boxes, even the vibration should be find. And about the leaks, even a small leak will be alright, but even then, it probably won't cause any leaking, it's not like you're screwing a screw in it and taking it out. The screw stays in the wood

 
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So far no issues w/ mine overheating. I run w/ the seats up 90% of the time too. Mine are totally hidden from view from the trunk and from inside unless the back seats are down. Check out the pics.

 
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Oh ... almost forgot.

Every vehicle before this one I always put the amps on a board under the rear deck. Its so convenient and out of the way .... and never have had a problem. Reality is I use my trunk often for groceries and crap.

Sometimes its a little tricky getting a board mounted nice but worth it in the end.

 
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Thanks for the info.

 
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what exactly is the rear deck?

 
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the rear deck is where the rear spealers are, that ledge right infront of the trunk.

 
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so where on that do you mount the amp?

 
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Amps have their heat sinks on the top for a reason -> Hot air rises. Most (descent) amps prolly have enough mass in them to compensate for this but if you ever have any probs with the amp thermalling, mount it right-side up.

~Tbone

 
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hot air may rise, but that means nothing.

what about yoru computer? does that mean desktops cool better than towers, cause they are mounted upright?

heat travels in the path of least resistance. transistor->heatsink->air

if you mount yrou amplifier upsidedown, yoru not gonna lose any cooling ability over right side up. air will flow the way it does. but the heat will flow in that direction, from the least resistance down the line. upside down is way fine, for sure

 
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DAMN rabbit, you are not always right and in this case, you are wrong! I work with mechanical engineers whose ENTIRE job is to design heatsinks by doing thermal analysis. While my degree is not in mechanical engineering, I had to take thermal dynamics, not to mention that I work with the mechanical guys on a DAILY basis. I COMPLETELY DISAGREE with you. Just admit it, you don't have the right answers for EVERY post on this forum!!!!

Notice I DID NOT say that his amp won't work mounted up-side down...

Originally posted by Tbone323
"Most (descent) amps prolly have enough mass in them to compensate for this but if you ever have any probs with the amp thermalling, mount it right-side up."

Originally posted by WhiteRabbit
"what about yoru computer? does that mean desktops cool better than towers, cause they are mounted upright?"

CAN YOU SAY FAN??????


A heat sink works by "sinking the heat" from the output devices. The heat is transferred from the metal fins to the air. The more surface area/mass (the combination of the 2), the more heat can be extracted. Now if the air becomes too warm, it becomes saturated and the heatsinks performance will be impaired. Now, if the heatsink is facing upright , the hot air will rise and allow cooler air to take its place and the process continues. Now, take that same heatsink and turn it upsidedown, the hot air rises and stays IN the heatsink fins. If you have a fan to move this air away, its ok, but natural convection will not work in this case.

Now, the air flow inside the trunk will not always be static, if the car is parked and the amp is running, it may go into thermal. If there were room for this hot air to rise, the amp would last much longer.

I don't know why we have to fight on here...disagreement is good because it makes everyone perform better but when you come right out and tell them they are wrong, YOU **** THEM OFF, PERIOD. Go back to your install bay with your hourly wage and wait for the kids to come in a want you to install the amps that I DESIGN

 
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woah there! check it out, never once in my post did i flat out tell you you were wrong! response is definitely a bit harsh, there was nothing offensive in my post at all!

I apologise If my post made you angry, but check it out.

an amplifier is likely to overheat. or it is not. thats about it. and mounting it upside down isnt gonna make a difference! can you name an amplifier on teh market today that has zero heat problems right side up, but will have problems when you mount it upside down? i sure cant!

I never said i was right, and i hope i didnt come off saying yrou were wrong, if i did, you have my apologies. i definily got nothing agasint you, guy!

as to yrou insult about my installer job, i dont work for the company anymore. i may have an internship building guitar pickups, but at this time, nothing is solid. im just a college kid, dude, this is my hobby!

as far as i can see, there was never a fight here, buddy! But i do have to say that there is a difference between theory and real world performance, which im sure you understand probably better than me!

but an amplifier that has a heat problem upside down? itll still have a heat problem right side up. no amplifier that I can think of is so borderline on heat that that will make a difference!

or prove me wrong? ...again?

 
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rabbit...there are no amps out there that have heat sinks on the bottom, this is not coincidence. Amps are designed and built to run full power for only so long. Typical music is said to be 1/8th power (weather or not I completely agree with this exact value, I'm not so sure) but it is significantlyu less than full power. If you drive an amplifier at full power, it will have a specified thermal time. Now, in a car, chances are (if the amp is designed well enough) you will never reach this point because your car cannot supply the amount of current needed to complete the thermal time. If determine that Amp A has a thermal time of say 30 min, if you turn it upsidedown it would significantly cut that time down, by how much exactly, I dunno.

Physics cannot be beat ->
Your Quote:
"But i do have to say that there is a difference between theory and real world performance, which im sure you understand probably better than me!"

AGAIN...Physics cannot be beat!

I accept your apolgy but you struck a cord with me with your post since I was so specific in my post about what the expected performance COULD be, ESPECIALLY when your supporting example was a PC..the comment of the horozontal or vertical tower, THATS what urked me, FYI.

~Tbone

 
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again my apologies about hitting a tender spot, again, no worries on this side, if there are no longer any on yorus!

except for helix amplifiers