Type of Material for Sub Enclosure
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=51421
Printed Date: April 26, 2024 at 5:02 PM
Topic: Type of Material for Sub Enclosure
Posted By: FreakypervSD
Subject: Type of Material for Sub Enclosure
Date Posted: March 06, 2005 at 6:04 PM
Hey everyone I have a question for people out there that have had experience with different types of material for Sub Box Enclosures...( ya I know basic materials like MDF and Fiberglass, or Birch, i think) any way Has anyone used or tried those 1/4 inch Ceramic Tile Backerboards they use for floors? I thought maybe I could use it on the interior of the box like a veneer. because it's very dense wouldn't that be a good thing? besides increasing the weight factor. It made of cement and other materials like silca etc... (WWW.hardibacker.com) might help give the Material contents...Weight isn't a concern....thanks
Replies:
Posted By: oonikfraleyoo
Date Posted: March 06, 2005 at 6:13 PM
I don't understand what you are tring to do. ------------- Nik
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Posted By: FreakypervSD
Date Posted: March 06, 2005 at 6:25 PM
I guess reinforce the box and or get better sound......
Posted By: oonikfraleyoo
Date Posted: March 06, 2005 at 7:22 PM
If you use MDFI see no point in using that stuff. The MDF will be plenty solid. Some say birch sounds better, I guess thats a matter of opinion as I can't really tell a differance. I don't see how that would help anything, but if you give it a try, let us know how it works out. ------------- Nik
Jeeputer Progress
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Posted By: Poormanq45
Date Posted: March 06, 2005 at 7:52 PM
Each type of wood has its own unique resonance frequency. I think that's what you're talking about isn't it?
I have seen/heard those tiles that you speak of before. They don't really make a difference in sound, unless of cousre you're the paying for it. Then the placebo affect comes into play.
I have used, successfully, a 3/4in thick "matted" carpet. It was kind of soft, but not shaggy soft, but not industrial carpet hard. It all but eliminated standing waves, and there was a noticable improvement below 250Hz.
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Posted By: Drewt
Date Posted: March 06, 2005 at 9:35 PM
oak wood.....haha
Posted By: deocder
Date Posted: March 06, 2005 at 9:43 PM
Unless you have a lot of this stuff for free, I cant see why you would want to use it. The stuff is actually very brittle, you can score it with a razor blade and snap it with your fingers. The pressure inside a sub enclosure would cause a box made of this stuff to explode. The general material is MDF, its easy to work with, very durable, and relatively cheap. It's also very strong. I do not believe that you will actually notice a difference with different material when building a sub enclosure; perhaps for a home theater midrange/tweeter combo enclosure.
Try it out with the cement board, use lots of silcone to seal up all the jagged edges.....and but be sure roll the camera when you crank the volume.....I wanna see it blow up!
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Posted By: FreakypervSD
Date Posted: March 07, 2005 at 3:02 AM
Aww can't I leave the jagged edges? more sharpnel!!! poke more eyes out!  lol Ya i thought it would be brittle just wasn't too sure....I know this is a lame post cuz I should have posted it on fiberglass and interior forum...... I guess 'll just stick to what works.... Thank you guys for all the info..
Posted By: Poormanq45
Date Posted: March 07, 2005 at 3:23 PM
Actually, concreate board is pretty strong, and it can "expand" about an in over a 4 ft surface without breaking! I have played with this stuff before, the enclosure itself will resonate at a frequency of ~15~30Hz when provoked  .
What you'll need to do to make it work is put bracing on the OUTSIDE, not the inside. When bracing it, you will have to screw from the inside out.
Anyway, I recommend using either MDF, HDF, or Furniture grade plywood. -------------
Posted By: jeffchilcott
Date Posted: March 07, 2005 at 10:40 PM
I am just going to start building boxes out of the fire wood pile. give it that whole rustic look. Havent quite figured out how ports will work, I dont use round ports period. this could get interesting. haha
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