sub is louder with the windows down - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 09-10-2010
fourliter dan's Avatar
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Icon5 sub is louder with the windows down

so i have noticed that my sub is louder with the windows down, noticeably at that. with the windows rolled up its loud and sounds great, but with the windows rolled down it seems to push better. every thing works fine, nothing is going haywire.

right now my 12 is in a sealed box, but im curious if i need a ported box. im not chucking a ton of power to the sub atm, im running an older rockford amp 500x2 bridged. normally i run and alpine 600x1 mono. but it as well does the same thing...lowder(seeming) with the windows down.

my sub
PowerBass Xtreme 2XL-124D Subwoofer | PowerBass USA
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Old 09-10-2010
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Ive noticed that with nearly every set of subs I've owned.
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Old 09-10-2010
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Ported sub boxes will produce louder volumes because they can move more air. As long as the port is tuned to the proper frequency for the speaker.

As for the windows being down and the sub being louder, That is most likely due to the frequencies being trapped inside the vehicle, and canceling eachother out. I can explain this more to you in person/ IM later tonight if you want.
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Old 09-10-2010
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yeah the windows down just gives the subs more air to push and room to push it, its the same case in all the vehicles ive owned as well
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Old 09-11-2010
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Yeah, my truck was like twice as loud with the windows down. Then I did the sound deadening and it made it a lot louder in the truck with the windows up, almost as loud with them down.
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Old 09-11-2010
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Quote:
Originally Posted by korey89 View Post
Yeah, my truck was like twice as loud with the windows down. Then I did the sound deadening and it made it a lot louder in the truck with the windows up, almost as loud with them down.
That would be because the sound gets absorbed, rather than reflected, so the waves can't cancel each other out. therefore, audio appears to be louder (sounds like it doesn't make any sense, trust me, that's how it works.)
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Old 09-11-2010
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ok, im understanding. its just weird that it will vibrate my mirror quite a bit more wi them down....

eff it... i need 2 more subs and 5k wats
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Old 09-11-2010
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Quote:
Originally Posted by stephen.g.fiddes View Post
That would be because the sound gets absorbed, rather than reflected, so the waves can't cancel each other out. therefore, audio appears to be louder (sounds like it doesn't make any sense, trust me, that's how it works.)


Wrong. The sound deadening doesn't absorb anything. It stops energy from being wasted resonating metal panels.
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Old 09-11-2010
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Originally Posted by fourliter dan View Post
ok, im understanding. its just weird that it will vibrate my mirror quite a bit more wi them down....

eff it... i need 2 more subs and 5k wats
Sound waves, and the reflections do not cancel each other out with the windows down, cause there is less reflection.



Red wave = sound wave off speaker.
Blue wave = reflection

(+1) + (-1) = 0. Canceled sound wave.
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Old 09-11-2010
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Originally Posted by korey89 View Post
Wrong. The sound deadening doesn't absorb anything. It stops energy from being wasted resonating metal panels.
Energy will be lost anyways, because it has to go somewhere. it's called sound deadening for a reason.
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Old 09-11-2010
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no pissing matches!
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Old 09-11-2010
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Originally Posted by stephen.g.fiddes View Post
Energy will be lost anyways, because it has to go somewhere. it's called sound deadening for a reason.
Obviously energy is going to be lost always. But less is lost with sound deadening. It is more of vibration dampening than anything and is the proper name to call it. It is not absorbing sound waves and making it harder to hear outside of the truck, as you would think. Also what you are saying probably has very little to do with SPL as SPL is not a measure of just dB. Which is why if you take a dB meter and use that on your system you will not get the same result as you would with an actual Termlab. The reason your bass hits harder with the windows down is because you are moving more air with them down, which is why your mids and highs dont get louder with the windows down as well.
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Old 09-11-2010
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Originally Posted by korey89 View Post
Obviously energy is going to be lost always. But less is lost with sound deadening. It is more of vibration dampening than anything and is the proper name to call it. It is not absorbing sound waves and making it harder to hear outside of the truck, as you would think. Also what you are saying probably has very little to do with SPL as SPL is not a measure of just dB. Which is why if you take a dB meter and use that on your system you will not get the same result as you would with an actual Termlab. The reason your bass hits harder with the windows down is because you are moving more air with them down, which is why your mids and highs dont get louder with the windows down as well.
This is true... dammit, IDK wht i didn't think of that before... I've been doing this sound **** for 8 damn years! lol


longass day = fiddes no think straight lol

EDIT: longass few weeks
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Old 09-11-2010
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following!
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Old 09-11-2010
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Quote:
Originally Posted by stephen.g.fiddes View Post
This is true... dammit, IDK wht i didn't think of that before... I've been doing this sound **** for 8 damn years! lol


longass day = fiddes no think straight lol

EDIT: longass few weeks
however, what I said about cancellaton still applies as well, which makes the difference more noticeable.
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Old 09-11-2010
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Quote:
Originally Posted by 03edge View Post
yeah the windows down just gives the subs more air to push and room to push it to the limit, its the same case in all the vehicles ive owned as well
noticed the same thing also
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Old 09-11-2010
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Is it true that a sealed sub box sounds better ?
More clarity in the music reproduction ?
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  #18  
Old 09-11-2010
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Ive also noticed that if my passenger window is down, but my drivers window is up...Its so loud it makes my left ear drum hurt.
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Old 09-11-2010
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Quote:
Originally Posted by Coleosis View Post
Ive also noticed that if my passenger window is down, but my drivers window is up...Its so loud it makes my left ear drum hurt.
Then turn it down and that won’t happen… LoL
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Old 09-11-2010
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mine only seems to get louder with the windows down because its nicer outside and i want to crank the music even louder!
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  #21  
Old 09-11-2010
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Quote:
Originally Posted by Coleosis View Post
Ive also noticed that if my passenger window is down, but my drivers window is up...Its so loud it makes my left ear drum hurt.
i have no ear drums to mess up...i already have hearing loss and tenitus(annoying btw)

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Originally Posted by ranger4.0 View Post
mine only seems to get louder with the windows down because its nicer outside and i want to crank the music even louder!
i hear ya there!
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