Box Advice For A 02 Mustang. Please Help!

[mikeg321]

Hi I'm a long time reader and a first time poster on this forum and I have a couple questions that hopefully someone can help me with. I'm building a box for 2 15" BTL's that's going to replace the back seat in my car (daily driver) and I need some advice on the design. I've come up with three ideas and I'll list the pros and cons that I've come up with 1. a box with an angled back wall pros: it'd be around 9 cubes net vol. so it'd be a decent size for the subs, it would use all the available space in the back seat area for the box, and it'd probably look the best, cons: this will only be my third box build and I think it'll be hard to get all the angles right 2. just a rectangular box, pros: easiest to build, cons: it'd only be around 6 cubes net vol. which I think is a little small for the subs 3. a box that would be made in two sections and joined in the car. the first section would be the same size as idea 2 and the second section would be attached to the back of the box and extend into the trunk, pros: I could make the vol. ideal for the subs, cons: it might be a pain in the ass to join the sections in the car, and I don't know how a design like this will affect the performance and the sq of the box (I'm not really going for sq but I don't want it to sound like s**t). Another question I have is I want to mount the subs facing up and the port firing forward would it be noticeably louder with the subs facing forward and the port firing forward? Or would that be something that's kind of vehicle specific that I'd have to experiment with? Also any advice on securing the box I don't want it to become a 200lb projectile in a worst case scenario. I was thinking about using some 3/4" all thread rods and bolting it to the floor any other suggestions? Any help would be greatly appreciated!!

Thanks,

Mike

[sound xtreme]

while it may not be easy to build, you always want to go as big as possible, you can always make it smaller. Also, take your time building it, dont hurry through it just to get it done, chances are it wont come out right and you will have to do it over again, taking even more time and costing more money

[raytard]

take your sweet ass time and do it angled

only way to learn is to try, and if you mess it up real bad you're just out like 20 bux of mdf, so its not the end of the world

[mikeg321]

Thanks for the advice I think I'll try to build a box with an angled back wall. Now I just need to figure out how to secure the box.