sub box build

thank you so much. i think i have my subs wired is at 1 ohm maybe 4ohm ill have to check. my amp is this one and i have it in a ported prefab box and i have the amp set right at the peak before they bottom out. so no matter how i high oi turn the volume up it wont bottom. i can tune amps very good so im not worried bout that. this is my amp http://www.dbdrive.net/products-detail.php?id=a3%201000.1d&brand=okur§ion=amplifiers&series=a3%20series

oh and i forgot to mention that there is going to be a divider between them in the middle

20silverado06 wrote: oh and i forgot to mention that there is going to be a divider between them in the middle

Cut a hole in the divider so they share the same airspace inside the enclosure.  Otherwise, you will have to port each side separately and you will not have enough physical space to get a large enough port in to make it sould like anything other than ass.

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how big of a hole in the divider. and would it be better to leave it open with one port. slotted or round

In that small an enclosure use a round port like suggested before.  Cut a 4" to 6" hole in the divider and turn it into a brace.Support the12volt.com

a brace how

and im going to build it out of plywood first. seal it completely and go from there then once i confirm i like it build it out of 3/4 mdf

and im going to seal it with polyurethane varnish

If you want to build a mock-up to see if it fits, make it out of cardboard.  If you're going to use plywood and actually mount woofers in it, then you'll need to use 3/4" ply and you might as well keep it as your enclosure, or just use MDF to start with.  And you'll need to seal the inside with more than varnish.  Gorilla glue or RTV or liquid nails on every seam is the way to go.  Have you built an enclosure before?  If this is your first one, you've chosen a pretty complex first build...  And if you don't understand my comment about making a brace, you really need to before you start.Support the12volt.com

Ive built 2 before. I was tired when I said brace how. I know what you were talking bout. It just didn't hit me right away. And yea I'm going to use wood glue then seal the edges then varnish it. And the reason why plywood first is cause I got plenty of plywood laying around