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so i made a little teaser video of sub (posted in video section)

anyway i was trying to do another one (but my cam sucks im going to try to find someone with a camcorder ) anyway anyone have any ideas why it flexes alot more and is loader with windows down than up?

i thouhgt with windows up there would be more pressure on the car thus creating more flex anyone else have this issue

anyways at least the sub sounds good lol and im happy with it by the way 3.5 cubes ported to 25 hz stroker pro 15

only thing is i have 2 3" ports and are in a bad spot ill get picks later of the ports

i was trying a 15 x 2 " port but messed it up so i went the easy route lol someday ill redo it

Edited by CstrokerV
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The car actually acts like abandpass enclosure. Windows up makes it have the effect of a 4th order (ported box into a sealed box), When you roll the windows down the car acts like a 6th order (ported into ported). A 6th order bandpass in most cases is louder but must be larger thus why people would rather hear a 150 sealed than a 155 with the window down because it's harder to get loud with the windows up.

HU: JVC KD-AVX1Speakers: Stock BlazerSub: 2 Mass Destruction Car Audio Sidewinder 12"Amp: Orion HCCA-D1200 @ 1ohm (600 RMS)Box: 3.0 cubes tuned to 35

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all i know is in my expedition when i let the windows up and crank it, they have to come back down to let the pressure out. i almost fainted one day while riding (listening to Lil Jon). it was way to much bass and pressure for the windows to be up.

2-DC 15XLM2 D.7s

1-DC 5K amp

(1) XS Power D6500(UNDERHOOD) and (1) XS3000(REAR)

3 runs 1/0ga for power and 2 runs of 1/0ga for negative.

(2)-RFT165s components, ...... 4 separate 1 inch tweetersRF T600-2(fronts) Punch 450.4(rear)

Audiocontrol 3.1.

DC power 260amp alternator w/MLA Module

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all i know is in my expedition when i let the windows up and crank it, they have to come back down to let the pressure out. i almost fainted one day while riding (listening to Lil Jon). it was way to much bass and pressure for the windows to be up.

and what kind of system do you have? thats hard to believe.

duck.jpgSMDsigbannr9.jpg
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and what kind of system do you have? thats hard to believe.

x2 its impossible to generate air pressure in a car like that. All you do is displace air in a car.

A couple links to some box builds:

Tahoe Box 1, Tahoe Box 2, Nissan Titan, VW GTI,

Mini-Bump, Hummer H2, Ford F-150

My own car builds (current setup --- under construction):

Overall Thread, Kickpods, Dash, Back Doors

Subwoofer Wall

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x2 its impossible to generate air pressure in a car like that. All you do is displace air in a car.

I agree.

DC Audio - Singer Alternators - Knukonceptz - XS Power - Hybrid Audio - Rockford Fosgate - Second Skin Audio - SMD - Sundown Audio - Elemental Designs

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x2 its impossible to generate air pressure in a car like that. All you do is displace air in a car.

well it's a lot of displacing of air then. she drops pretty low too. here's some pics

th_DSC00351.jpg

th_DSC00372.jpg

th_DSC00370.jpg

th_DSC00352.jpg

th_t212sbig.jpg

th_insideviewofbox.jpg

2-DC 15XLM2 D.7s

1-DC 5K amp

(1) XS Power D6500(UNDERHOOD) and (1) XS3000(REAR)

3 runs 1/0ga for power and 2 runs of 1/0ga for negative.

(2)-RFT165s components, ...... 4 separate 1 inch tweetersRF T600-2(fronts) Punch 450.4(rear)

Audiocontrol 3.1.

DC power 260amp alternator w/MLA Module

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