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dual 12w7 = installed *PICS*

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Old 06-26-2003 | 03:24 PM
  #1  
henock
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dual 12w7 = installed *PICS*

at least now when i got to meets i have something else to show off besides my intake :-D

Rundown:
Alpine CDA-7893
(4) Infinity Kappa 62.5i Coaxial Speakers (75w)
Kicker 600.4 4-Channel Amp
Audiobahn A1500HCT Amp
(2) JL Audio 12" W7 Subwoofers (750w to each)





Old 06-26-2003 | 03:25 PM
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henock
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Re: dual 12w7 = installed *PICS*



Old 06-26-2003 | 03:33 PM
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AscendantMax's Avatar
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nice! are you deaf yet?
Old 06-26-2003 | 03:46 PM
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henock
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im gettin there
Old 06-26-2003 | 06:32 PM
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woo hooooooooo looks sweeeeeeeeeet no more spare tire lol
Old 06-27-2003 | 12:02 AM
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hmmm didnt go with a huge ported box wtih a w7? how does it sound in a sealed box never heard it before
Old 06-27-2003 | 09:08 AM
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man that looks nice. henock, think you can hook me up with some of those?
Old 06-27-2003 | 06:30 PM
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BLaZin 2k MaX's Avatar
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Sweeeet! Im sure those things pound. Hows the ratteling? If your not dynamated I suggest you do it, it will pound even harder.
Old 06-28-2003 | 10:14 AM
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very nice set up, the box is sealed?
Old 06-28-2003 | 08:01 PM
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looks sealed to me
Old 06-28-2003 | 11:00 PM
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Jesus that is a huge box, ZERO trunk space now aint it? Im not knocking on it but I just dont believe in wasting the entire trunk space. But man two 12W7s must be hitting hard as hell, damn near to the point of shattering the rear glass.

Dixit
Old 06-29-2003 | 12:32 AM
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AscendantMax's Avatar
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Originally posted by BigDogJonx
Jesus that is a huge box, ZERO trunk space now aint it? Im not knocking on it but I just dont believe in wasting the entire trunk space. But man two 12W7s must be hitting hard as hell, damn near to the point of shattering the rear glass.

Dixit
he better not turn it too high or better have an extra windows handy
Old 06-29-2003 | 02:14 AM
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henock
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Originally posted by BigDogJonx
Im not knocking on it but I just dont believe in wasting the entire trunk space.
Dixit
its not as big as it looks.. theres an amp behind it.. i need to find a better mounting spot soon, but once i push the box back it should be parallel to the two walls back there.. maybe sticking out a bit.

Yeah, it is sealed. i didnt wanna blow the last bit of my money on the little tihngs that wont matter in the long run.

the rattling is atrocious.. i need to fix that.. when the sub is pumped up the trunk lid shakes around like its not attached right.. its an amazing sight actually.. but i am planning on dynamatting (or something) in the future and i need to bolt down the bottom half of the license plate.. that should help a bit

i dont know if ican hook some w7s up to anyone.. we'll have to see

i cant tell how something sounds unless i hear many different setups unless i have a point of reference.. all i can say is its kidney punishment.. i feel vibrations all over my body. my friends described the sound as a "monster" or "thunder"... which is accurate heh


ive gotten up to about 33-35 on the volume (alpine decks..) and everytings been coo.. i just dont run it up there for too long.. i dont wanna be shopping for windows..
Old 06-29-2003 | 01:14 PM
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that box is way too small for the W7's.. you may blow the woofer if you push it too hard with such little air space.

i doubt they would blow though because i am not sure that audiobahn amp would push them near hard enough to get that close.

did you research these pieces or just buy a bunch of audio stuff?
Old 06-29-2003 | 01:19 PM
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because the box is sealed i think he can get away with using a smaller box as long as it is poly filled
Old 06-29-2003 | 02:03 PM
  #16  
henock
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Source: http://www.jlaudio.com/subwoofers/pd...PowerRange.pdf


My enclosure is 28"x15"x13"; which translates to 2.3'x1.25'x1.083';

This comes out to 3.114 cu. ft.

The recommended cu. ft measurement for one 12w7 in a sealed enclosure running at 750w is a range of 1.25 - 1.63 cu. ft.

When multiplying this range by 2 (2 subs), this comes to a range of 2.5 - 3.26 cu. ft.

My box comes within this range.

Im not defending the setup or shooting your concerns down, because im no audio guru.. im just offering measurements, and im not sure if that multiplying by two works or not.. tell me what you guys think
Old 06-29-2003 | 09:19 PM
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Great set up! I'm not familiar with Audiobahn amps, but I assume they're pretty good. Maybe later down the road when (or if) you get use to the sound, you can switch up and get a dual ported box and even keep the same amp. Its like night and day. I dont think I'll ever use a sealed one again.
Old 06-30-2003 | 03:21 PM
  #18  
silver99
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hey, the subs are awesome.

i noticed they are firing toward the back of the car. i havent had a system in the new max yet but in the sentra i had a dual sub box and in the old max i had a single sub box, both were firing forward and sounded better than if it were firing towards the back. Does the box sit like that all the time>? does it sound better firing backward?
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