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Subwoofer Better with Boot Open 


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Posted: Fri Sep 15, 2006 1:12 pm 
Getting Side Ways
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Age: 30

Posts: 4946

Joined: 15th Nov 2004

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Ride: Trik'd up EFII XR6

Location: Perth
WA, Australia

thats the confusing part...hes saying form in the car it sounds louder etc so to me its sounds like sound pressure within the boot and cabin and the difference when the boot is open and pressure released well more so then when the boot is closed.

I dont see how its cancellation but wont disregard it as I see where ya comin form....cancellation and phasing tho should be reducing the perfomance of the subs and how they are heard within the cabin if this is when the boot is opened theres more area for sound to be lost to the greater "air area" and less deflection for the sound waves as to when there in a sealed boot.

hmm good one to have a think about but yeh....still unsure yet as to wat could be the cause.



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Posted: Sun Sep 17, 2006 12:08 pm 
Tyre Shredder

Age: 36

Posts: 383

Joined: 11th Aug 2006

Ride: 6.0L VE Calais-V

Location: Hastings
VIC, Australia

Razor7107 wrote:
no you havent. your completely full of s**t.

How about you learn some forum etiquette before responding to me in future. How would you know what i've heard? :roll:
For competent installers it's a commonly known issue with sedans. Depending on how well the front of the subs are sealed off from the boot will determine how much difference there will be when the boot opens. You can reduce it to virtually no difference by sealing off the boot area so no sound pressure can get in there.

Some more info: ... faq.asp#24 - At SUBWOOFER PERFORMANCE section. ... ?TID=49234 ... 8;t=012370
Posted: Mon Sep 18, 2006 10:21 am 
Getting Side Ways
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Age: 42

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Ride: 2009 FG XR6 Sedan

Location: Melbourne
VIC, Australia

I agree with Stone. If i have my sub facing forward its like its not even working! but if i have it facing the rear right behind the back seat its the same deal. If its facing the rear ontop of the spare wheel its the sweet spot.... So positioning is everything as a cars have the worst acoustics.
Posted: Sun Sep 24, 2006 11:30 pm 
Fordmods Newbie

Posts: 4

Joined: 30th Aug 2006

Location: Yinnar South
VIC, Australia

It's just one of the issues that many people have.
I have two twelves firing towards the cabin behind a gas tank and it goes very loud, but strangely when the passenger door is opened it sounds much louder.
Saying this i don't think it has anything to do with pressure inside the boot.
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