Any flaws in my box design?

[icecoolwas]

Ok I'm buying two Alpine Type R 12s D4 subs soon and I designed the box. Below is a link to a Png/Image of what I have designed using the RE Enclosure Calculator, I've never made a subwoofer box before so I need to be sure I've done it right

Also how will Two Alpines @ 1ohm powered by 1200 watt RMS sound in that box?

Thanks again guys.

Link: http://img5.imageshack.us/img5/3671/filep.png

P.S. Ignore the attachment, I tried uploading my Box Specs and It said it was too large, then I couldnt even remove the attachment URL so I made a 1pxby1px image in paint and uploaded that instead.

[spooney]

The box looks to be ok.Port area is consistent with the enclosure volume you have although I personally go a little smaller with the port area just because it helps keep the length of the port down and thus makes the overall enclosure a little smaller.Tuning frequency is good too.I usually shoot for 35hz with my ported enclosures as well. Your box specs look right on with what most people are doing in car audio these days. No real way to tell how it will sound because that has a lot to do with your car as well but I think it will be fine.I surely don't think it will sound terrible by any means

[ozracing]

looks nice good work. let me ask you with what kind of program you did it?

[icecoolwas]

Thanks guys, BTW I send you a email for what program I used.

[luka]

It's an RE online calculator, you can use same one on my page, or even download it

About box... 2c/f per sub is good, port is also perfect, in the end you will end up with probably little less then 4c/f and tuning 36-37Hz

Its good! now get to and lets see it