sub box

I need help I  want TO  know how to build a sub box to hold two subs can i build it straite or does it have to be at a angel this is my first atimpt at building one help please

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joeykang

Knowing where he's gonna put it isn't actually required to answer this question.

A box can be pretty much any shape. As long as the total air volume inside the box is what the woofer manufacture recommends (for example 1 cu ft per woofer, but you'll have to check your manual), it'll probably work fine, as long as you make a sealed enclosure.

So, you can let placement dictate box shape. If you're placing it against the rear seat in the trunk, you'll want to make an angle so that you don't waste valuable space.

///Leif

Thats not a completly acurate statment Leif. A box can be made any shape, however some shapes do work better than others. For example a completly square box will produce standing waves, which is very bad. Putting an angle in the box will help eliminate this. Also I dont know what you ment by saying "as long as you make a sealed enclosure" but you can get good sound out of a ported encosure as well and you can get loud output outta a bandpass or transmision line box too. If you are new to this as you say you are, I would suggest making a sealed box just because it is easier although a ported box isnt really that much harder to build, just harder to plan. I would suggest bracing the inside of the enclosure and using 3/4 inch MDF and using wood glue and either brad nails or screws. Its pretty essensial to glue the box and not just nail or screw it together. If you do this right you wont have to silicon the inside of the box but it never hurts anyways.

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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer

I am learning all the time from Ravendarat, and to add to his suggestions, here is a link to an enclosure-building help page:  https://www.diysubwoofers.org/faq.htm

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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

it is a 1988 ford turaus 3.0 v6 i am placeing it  in the trunk behiend the rear seat thank you for the help everybody i am wonding if anybody has a better install idea pic can help  thanks

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joeykang

I built a box for a single 12" for my Taurus, and made it a little different than usual.  The speaker is mounted into what looks like the side of the box, and the box angle allows it to fit all the way back against the rear seat.  The woofer fires toward the center of the trunk space.  It works real good in my car, but the angle of the box and the cutout on one side like this means you can use it only in one position in the trunk...no moving it around to find what sounds best.  Your car should be similar in size to my '01 model.  Here is a pic of the box.

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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

This is in the trunk.

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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

thank you   do you have any more cool setup

 ideas

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joeykang

For two subs I think I'd put the back of the box against the rear seat and face both subs toward the rear.  You can do an angle on the back side, if necessary to get it back further.

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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

I like that box, its simple and effective. Alot of times the solution that seems easiest is the best one. By the way, where are those grills from or did you make them. I was looking for some for my sub wall in my truck but havent found anything I like yet, those are pretty cool though

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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer

Thanks, I like them and they are heavier than they would seem to be.  I got them from Parts Express.

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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.