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hey guys. i just joined this forum and im a newb when it comes to tuning cars and stuff. i just bought a 2005 honda civic lx coupe and i was just wondering wats the best material and diameters to make a good bass subwoofer box. i hav one already but i dont know what its made of. it was from my cousins 95 GTi. i dont think it will fit in the drunk but the box itself is heavy as hell, probably why it pounds so hard. but yea just wondering wat materials i should use to make a new sub box and the diameters so it will fit just right in the trunk. i hav a 10" pyle pro series sub really old but it still pounds hard. i know this question has been probably asked a million times but if u guys can help me out that would be awesome. cheers

 
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Basically you want to start with the sub, and not the box. Figure out what sub you want, and then check the specification on what kind of box is best for it- they all have the measurements lined out. You have options as you will find out, either you got a sealed box, or a ported box. And if you dig around even more, you can do fiberglass if your up to it, or find a good shop that will do it for you.

 
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yea...i suggest a new sub. im not a big pyle fan but if u think it hits hard keep it. find out the specs and the company gives u an idea of what kind of box works well wit the sub...then either build it urself or find someone selling one. by the way, if u decide to update u subs, i have a custom box for 2 12" subs that i made myself...nice n sturdy, black carpet and new connectors in the back.

 
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3/4" MDF is a good all around choice for building sub enclosures.

 
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theres a lot more to building a sub box than just screwing some mdf together. if the box isnt perfect for the sub, its gonna sound like sh*t. by some of the questions you asked, im going to assume you dont have a clue what you are doing, so im gonna just recommend either buying a pre-made one or pay someone to build you one.
Here are some pics from my box that I made a few months ago. It is now carpeted. this is from right after siliconing the joints.



as you can see from this one, take some time with the jigsaw. I had to fix the right side hole after cutting it, which was a royal pain in the rear.

 
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For sure, it takes time and knowledge to design a box properly. T/S is only one piece of the whole equation as those are small-signal equivalents. I recommend the Loudspeaker Design Cookbook to anyone who's up for it. My next project just might be a transmission line.



Makes me love the computer controlled router.

 
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wow guys these ideas are awesome ! great help keep them coming ! THX

 
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you lucky sob! i wish i had access to something like that!