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Audio (and aftermarket electronics) This is your place for alarms, remote starters, to brag about your system, exaggerate your db levels, or simply ask questions for stock or aftermarket audio. No Flames! (except from roasted amps)

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Old 11-11-2010, 01:47 AM   #11
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I can hear the trunk flexing and rattling already : P
I love having my box sealed from the trunk.
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Old 11-11-2010, 05:30 AM   #12
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hmmm.. Maybe ill just buy another car and build a wall
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Old 11-11-2010, 08:38 AM   #13
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Trunk flexing? Nothing rattles. Put in 5 years ago and not a regret yet. Don't you have some more **** to blow up "Router Murderer"
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Old 11-11-2010, 11:43 AM   #14
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You can't mount the subs on the rear deck. Its not as sealed as you think it is, and the rear deck itself isn't strong enough as a surface. You'll get much better results by building a box for the sub.

You have to consider the dimensions of the sub you're building. You can't build a box too small or too large. First find out what that sub is designed for, and then we can go from there.

From there, the measurements you need to make are the distance between the trunk hinges, and the distance from the floor to the rear deck, or from the floor to the rear deck speakers. Once we know the height and the width of the box, we only need to know the depth. You determine the depth by how much space you need for your given sub. You then build a makeshift rectangle out of scrap wood with the depth you've chosen and the maximum height you can use, and try to fit that into your trunk. You try fitting it along all width dimensions of where the box would be.
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Old 11-11-2010, 11:57 AM   #15
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Carpeting was removed, Sound insulation applied, carpet replaced, sub installed on rear deck pounding into the cabin. (All this because I used to have to take Aunt around w/wheelchair in trunk) Sounds totally awesome with hard rock. And you tell me CAN"T. Well,eeeeeeeeeexuse me. I must be living/photo'ing a dream? I have had nothing but good feedback from my small but effective system. So
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Old 11-11-2010, 12:03 PM   #16
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Quote:
Originally Posted by GXP Venom View Post
Carpeting was removed, Sound insulation applied, carpet replaced, sub installed on rear deck pounding into the cabin. (All this because I used to have to take Aunt around w/wheelchair in trunk) Sounds totally awesome with hard rock. And you tell me CAN"T. Well,eeeeeeeeeexuse me. I must be living/photo'ing a dream? I have had nothing but good feedback from my small but effective system. So
Ok, lol, let me put it this way. I'm sure it works. I'm sure you get sound, and I'm sure it also sounds decent. However.

I'm sure the volumetric space of your trunk is much larger than any sealed sub box the sub you're using is designed for, the 6x9'* take some of the impact of that bass and therefore make it not quite a sealed box since it has areas to flex, and I also wouldn't be confident in using the rear deck as a sub mount simply because I don't think its solid enough. I've heard from sub box builders that some people even use two front panels where the sub mounts for increased strength to reduce flexing of the sub box.

For your application and intentions, I'm fairly certain it works perfectly, but if you were to bolt a 1000W sub like the OP appears to want to do, the results wouldn't be as good as if you built a sub box for it.
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Old 11-11-2010, 12:17 PM   #17
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Well, thats was graceful. HeHeHe. Just don't like to hear CAN'T when I did it. And it works well and never a criticism for the sound it gives. Yes, I'm sure higher wattages would aggravate the circumstances. The carpet to the trunk lid was removed and aluminum bar re-enforcements attached to existing bracing. This Amp has been bolted in place for 5 years and never come loose. Nor has the trunk lid flexed. And I have an extremely expensive paint job on the line.

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Sometimes we are faced with problems that need engineering around. But Can't doesn't accomplish anything. I have a very compact neat package that works well for me.
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Old 11-11-2010, 12:34 PM   #18
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Quote:
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Well, thats was graceful. HeHeHe. Just don't like to hear CAN'T when I did it. And it works well and never a criticism for the sound it gives. Yes, I'm sure higher wattages would aggravate the circumstances. The carpet to the trunk lid was removed and aluminum bar re-enforcements attached to existing bracing. This Amp has been bolted in place for 5 years and never come loose. Nor has the trunk lid flexed. And I have an extremely expensive paint job on the line.





Sometimes we are faced with problems that need engineering around. But Can't doesn't accomplish anything. I have a very compact neat package that works well for me.

Wouldn't mind seeing some pictures of that! A little trunk space sure wouldn't hurt. I know there'* virtually none left in the Regal, lol.

Come to think of it, my sister'* Saturn L200 also has a 6.5" sub mounted to the rear deck from the factory.

I just figured that since he'* trying to figure out what the biggest sub box he can fit in his trunk, trunk space isn't an issue as it was for you.
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Old 11-11-2010, 12:58 PM   #19
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Just in a ribbing Mood today X. Ya, I know he is looking for ear bleeding subsonic sound. Which I don't really understand, but each to his own. It hasn't a home in genre'* I listen to. Mine leaves a very small imprint, and compliments the stock Monsoon system very nicely. When I was done, suddenly the OEM system didn't "suck"

Semi "Free air" installations can be quite effective, cheaply made, and with good results for those that just want their Rock bass notes to pound. The only point I was trying to make. The trunk is sealed enough to make the Sub work efficiently. And the sound coming off my rear glass when playing something like Foghat'* "I just want to make love to you" is amazing. While it doesn't rattle it certainly dances looking at it thru the rear view mirror as I bob my head.
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Old 11-11-2010, 01:31 PM   #20
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Very nice setup John. I thought about doing mine in the rear deck as well but I'm thinking a different route with two 10s now after riding in a vehicle with them and they were perfect for what I want.
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