The 1.4 is with the sub taken out. I made it big to plan on the bracing

It should work out very well in the end.

Any guides on carpeting? Thats the next major challenge

Ok I did the math, instead of using a website to calculate (Yea geometry!!) and I actually have 1.413 cu ft without the bracing, so I should be go for bracing!!

Thanks for all the help and links. I will continue to update with my progress

As far as the seams go I put a few extra layers of wood glue on there to help seal them up, as you can see in the pics. I guess I can get some silicone just to be sure.

Ok 1 more thing. I just realized that the box turned out a little small and by my calculations right now I will have 1.09 cu ft. I screwed up when adding in the width of the mdf (doh!). The 1.09 is with no internal bracing :(. How much of a difference will this make? I really dont want to redo it al...

1. Pic of the car :) 2. and 3. As you can see we designed and built the basic structure of the box. We designed it so that the rear seats can be fully reclined. I also wanted to maintain as much trunk space as possible. I have the front panel cut, just have not put it on, as we ran out of time to do...

Well progress has been slower than I would have liked on this project, but here are some pics of where I am at so far.

I have the rear deck cover removed. I have the back windows tinted with 5%, so you cant see in there. I had my previous setup facing up and it sounded great, but it was ported. I guess I can aim it back and redo the size of the box. Any pics of your setup? I wanted to aim it up and create a new trun...

Im looking at making a box with 3/4" MDF with the following dimensions:
18.25 x 18.25 x 8.25. I will be removing the spare tire from the trunk and creating a new trunk floor, aiming the box up at the hatch in my Scion tC. How does this sound?

Thanks for the help!!

My HU is a Eclipse CD 5000 with the 8V preouts. Amp is a Elemental Designs Nine.2. 1.25 sealed sounds good. I was thinking that .72 sounded very small. One last question. Does the dimensions of the box affect output or does it just matter that I get the 1.25 cu ft? I am trying to figure out the best...

I just got a 12" RSDC to replace an old blown Kenwood sub. I will be giving it 450 watts RMS and would like to push this to get the most out of it. Looking at the Product manual it suggests using a sealed enclosure at .72 cu ft. Based on experience with this woofer, is this the best setup for t...