Sounds better with trunk open! - Chevy Impala SS Forum
 
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post #1 of 10 (permalink) Old 10-06-2002, 10:47 PM
SJG3RD
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I have 2-15" Kicker competion's in a sealed box faceing up right below the rear deck the only holes in the rear deck are where I took the 6x9's out. It's loud but seems to get louder and tighter when the trunk is open. Do I need holes in the rear deck to let more bass through or what? If so does anybody have any pics of this done and how it looks. I don't mind cutting the rear deck but I want it to look good and I don't want to have to do it more than once(like most things done to my car). Thanks for any help.
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post #2 of 10 (permalink) Old 10-07-2002, 07:36 AM
Sean96SS
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I used to have 2 12's sitting in the rear deck. Similar to a Steve Cornell setup. I think the sound was so much better with the subs in the rear deck. I have 3 12's now so it's comparable. My sub amp how take the place or where the subs used to be. You can hack the rear deck, but remember to dynamat eveything under there because it will rattle like a bitch. I had my rear deck remade in order to have it loooking nice. It all fiberglass covered in almost stock color carpet. I have added rear fill with 6.5 inch component sets rear the rear window. I would say add some of that because the bass in the car will be overpowering. Also make plans to check the seals on the rear window as mine are falling out from the pressure. http://community.webshots.com/user/sean96ss If you look at the new pics you will see the amp there. The older pics have the sub setup there. Also you can see a pic of the fiberglassed rear deck. Any other questions drop me a line [email protected]
post #3 of 10 (permalink) Old 10-07-2002, 10:45 AM
MOORESS
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try 2 things #1 throw the box out of phase (neg-.to pos+ pos+ to neg- this will help delay the amount of time that it takes the sound wave to get there .the other thing is turn the box to face the back of the car again this will delay the bass from reaching your ear . the big point here is that it takes bass notes about 12 feet to mature so the longer you can make the path to your ear the better it will sound

Donnie
 
post #4 of 10 (permalink) Old 10-07-2002, 11:14 AM
SJG3RD
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I was out listening to my set-up again and realized it wasn't necessarily (sp) the trunk being open but it was a lot louder when the car was stopped in park and no where near as loud when I was driving down the road. Could it be I need a new battery? I have a capacitor on the amp, but I do have another amp driving the fronts. Could the amp not be getting enough power. Thanks for all the help guys. Any thoughts would help me out I don't want to replace everything and still have the same problem.
post #5 of 10 (permalink) Old 10-07-2002, 07:42 PM
Vador
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I know! The sound waves are being sucked out your open windows.
post #6 of 10 (permalink) Old 10-07-2002, 08:19 PM
SJG3RD
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I dont think that's the problem it happens when the windows are up or down i can have the door open when the car is in my drive way and it still sounds better. Thanks for the help
post #7 of 10 (permalink) Old 10-07-2002, 08:28 PM
Captain Crankshaft
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Hey, this is interesting.
http://www.crutchfield.com/S-ANDajGq...ech/kb332.html

This is exactly what you are describing and how to deal with it!

Mark/CC
post #8 of 10 (permalink) Old 10-08-2002, 10:02 AM
MOORESS
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Hey ,Captain Crankshaft that's basicly what I was saying only in easy to understand terms. SJG3RD Did you try what I offered yesterday .I bet you will be impressed with the difference it makes.....
post #9 of 10 (permalink) Old 10-08-2002, 10:09 AM
Captain Crankshaft
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Sorry MOORESS, didn't mean to step on your toes there [img]redface.gif[/img]

I think the main difference is, that you know what you are talking about and I happened to have run across this as I was trying to solve an entirely different stereo problem.

On the brighter side, at least it fully supports what you said

Mark/ CC
post #10 of 10 (permalink) Old 10-08-2002, 03:14 PM
SJG3RD
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I try to do the wiring thing but my box is built to fit right underneath the rear deck. So it won't fit anywhere else and look half right. Thanks for all the help though very good info.
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