Sealing a wall around the baffle. Gain much on the meter?

[vehementSPL 10+ year member]

I have a wall. And I do plan on using silicon to attach the baffle to the interrior. Right now there prob is an average of a 1/6 inch gap all the way around. and I am just curious. How much can you really gain by doing it. Is it audible ? I am trying to remember but i had one I drove for a while before I did it and I really think I gained to the ear a good amount. But it is such a small crack not sure how much it effects it. So anybody metered before and after sealing the small gap around the baffle? results?

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[audioarsonal 10+ year member]

It should make a differance with smaller cabin.However your tuning might change as well.

 

[Ed Lester 10+ year member]

Difference can be as much as 2 dB.

This is what I have gathered from others.

I am not sure through my own experience as when I build a wall, I build the sides of the enclosure all the way to the inner skin of the vehicle, so there is no chance for air leakage at all.

 

[vehementSPL 10+ year member]

well it has a baffle that contours pretty decently

 

[audioarsonal 10+ year member]

It has to be sealed not just close.Any leak will cause a loss in pressure.From what I understand FG is the best way to seal it up.

 

[vehementSPL 10+ year member]

Yeah I figured. I just was curious what was typical gains..... ha typical in car audio... well as typical as it can be

 

[Mike465 10+ year member]

Yeah, it will help you gain, I still need to build by baffle for the wall in my car, but I am about to rip out the wall in a few weeks

 

[audioarsonal 10+ year member]

From what I hear its worth it. 2-3db gain if done right.

 

[Mike465 10+ year member]

Yeah, I have sceen around that as well. With the baffle it seals around the box lowering the amount of volume in the cabin.

 

[MikeyB 5,000+ posts]

I never ended up getting my old setup fully sealed, but it was close. Going from that to almost nothing was a decent change. 1-2dbs tops, probably wouldnt get muuucchh more from that point, I would guess minimal gains. For db drag and comp guys, it would be a good way to squeeze out a few more, but for a daily setup I wouldnt go as far as to mess with any part of the car as to not be able to return it back to stock.

Just my .02 //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[audioarsonal 10+ year member]

I never ended up getting my old setup fully sealed, but it was close. Going from that to almost nothing was a decent change. 1-2dbs tops, probably wouldnt get muuucchh more from that point, I would guess minimal gains. For db drag and comp guys, it would be a good way to squeeze out a few more, but for a daily setup I wouldnt go as far as to mess with any part of the car as to not be able to return it back to stock.
Just my .02 //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

x2

 

[Mike465 10+ year member]

x3

 

[vehementSPL 10+ year member]

I never ended up getting my old setup fully sealed, but it was close. Going from that to almost nothing was a decent change. 1-2dbs tops, probably wouldnt get muuucchh more from that point, I would guess minimal gains. For db drag and comp guys, it would be a good way to squeeze out a few more, but for a daily setup I wouldnt go as far as to mess with any part of the car as to not be able to return it back to stock.
Just my .02 //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Well i dont' care about it. But when you almost nothing to sealed 1 to 2 db. what ya mean almost nothing? no baffle? or just no sealant

 

[MikeyB 5,000+ posts]

Well i dont' care about it. But when you almost nothing to sealed 1 to 2 db. what ya mean almost nothing? no baffle? or just no sealant

No baffle to seal it off, it was basically just a big box sittin back there, then I put the panels in to start sealing it off. I never got it completely air tight, but most of it was really close.

I used a lot of expanding foam for sealing.

 

[AudioAnonymous 10+ year member]

I never gained anything in any of my vehicles from a wall with air going to the back to front sealed off from the back.