Stock sub box volume
Thread Starter
|
More Turbo
Joined: Oct 2004
Posts: 511
Likes: 0
From: Fort Worth, TX
Stock sub box volume
Anyone know the approximate volume of the sub box on a 2000 Navigator? I have a feeling it's much too big for my sub.
Also, does the padding that is in the box make the sub think it is bigger? I know some people put batting in boxes that need to be a little bigger.
Any help on this would be great.
Sam
Also, does the padding that is in the box make the sub think it is bigger? I know some people put batting in boxes that need to be a little bigger.
Any help on this would be great.
Sam
Thread Starter
|
More Turbo
Joined: Oct 2004
Posts: 511
Likes: 0
From: Fort Worth, TX
I wonder if putting some Great Stuff foam in there would help reduce the volume. I bet it would work great. I might do that to my twin 10" box with 2 Alpine R's. I know there are some leaks and I think they are too big.
Post Fiend
Joined: Jul 2005
Posts: 8,462
Likes: 4
From: Durant, OK (SOSU)
Ok well if there are leaks, filling it up with foam or the like isn't going to do jack crap for it. You need to pull the subs, then find and fix the leaks with silicone. The whole box should be sealed with silicone or the like.
The foam, or poly fill, or anything of that nature, doesn't take up enough space to make a huge difference. Especially poly-fill, you could fill the entire box up and still take only a minor amount of volume. It does make it sound better (pull your door speakers and fill their backfiring areas up, you'll notice a serious difference).
One way I've seen to take up extra volume is:
First calculate the volume required by the sub(s). Then measure the INTERNAL (not external!) volume of the box. If it's made of 3/4 inch MDF, remember that 3/4" takes up space! Figure out the volume that needs to be subtracted to create the ideal internal dimensions of the box. Create some sort of MDF peice that takes up this much space, try and make it an abnormal shape, at least not a box. That way the waves reflect better. Then just glue it in some odd place in the box. Fixes the volume problem, and creates better bouncing waves.
The foam, or poly fill, or anything of that nature, doesn't take up enough space to make a huge difference. Especially poly-fill, you could fill the entire box up and still take only a minor amount of volume. It does make it sound better (pull your door speakers and fill their backfiring areas up, you'll notice a serious difference).
One way I've seen to take up extra volume is:
First calculate the volume required by the sub(s). Then measure the INTERNAL (not external!) volume of the box. If it's made of 3/4 inch MDF, remember that 3/4" takes up space! Figure out the volume that needs to be subtracted to create the ideal internal dimensions of the box. Create some sort of MDF peice that takes up this much space, try and make it an abnormal shape, at least not a box. That way the waves reflect better. Then just glue it in some odd place in the box. Fixes the volume problem, and creates better bouncing waves.
Thread Starter
|
More Turbo
Joined: Oct 2004
Posts: 511
Likes: 0
From: Fort Worth, TX
Well, that stuff is very adhesive, so I figured it would work well for sealing any leaks as well as muffling sounds and taking up the extra space.
Anyway, does anyone know what the volume of the stock box in a Navi/Expedition is?
Anyway, does anyone know what the volume of the stock box in a Navi/Expedition is?
Thread Starter
|
More Turbo
Joined: Oct 2004
Posts: 511
Likes: 0
From: Fort Worth, TX
Actually, I've been considering that, if no one could come up with an answer. It's plastic, so no harm. I would just have to make sure everything was dry before reinstalling the sub. I'm just hoping someone on here has already done something like that. I may just end up being the guinea pig. 
Sam
Sam
Trending Topics
Lead Driver
Joined: May 2004
Posts: 6,461
Likes: 6
From: Abilene Kansas
See how much water you can pour into it.
kidding, bad steve, baaad.
kidding, bad steve, baaad.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
New User
Joined: Nov 2004
Posts: 9
Likes: 0
Fill the sub box with packing peanuts then take the peanuts out of the sub box and place in a cardboard box with known volume ie. 1’x1’x1’ and measure the un used portion of the cardboard box and subtract from total volume and you will have the volume of the sub box
If box is needed to be made smaller place a piece of 2x4 the size required to reduce the size and attach it to the inside of the box. The shape of the block will not matter as the sound waves produced by a sub at 80 hz are about 14 ft in length.
If the box is leaking you can use thin foam weather-stripping around the sub if that is the problem if not you can coat the hole inside of the box with fiberglass resin.
<O
Blinky
If box is needed to be made smaller place a piece of 2x4 the size required to reduce the size and attach it to the inside of the box. The shape of the block will not matter as the sound waves produced by a sub at 80 hz are about 14 ft in length.
If the box is leaking you can use thin foam weather-stripping around the sub if that is the problem if not you can coat the hole inside of the box with fiberglass resin.
<O
Blinky
Last edited by Blinky22; Apr 8, 2006 at 09:05 PM.
Thread Starter
|
More Turbo
Joined: Oct 2004
Posts: 511
Likes: 0
From: Fort Worth, TX
It's the one that comes in the Navigator/Expedition. It's about 1x1x8 for the main part and then has another foot or so, that extends further in a triangle shape. The thing is, it has that sound deadener in there that fills most of it up. Not sure if that takes away from the volume or not.
Thread
Thread Starter
Forum
Replies
Last Post
txazguy
Audio & Video Systems, Navigation, Satellite Radio & Mobile Electronics
1
Apr 4, 2015 03:48 PM
Tatternubs
Audio & Video Systems, Navigation, Satellite Radio & Mobile Electronics
14
Feb 23, 2014 09:21 PM
