I got a weird question but hopefully someone here can help me out. I have a 2004 dodge stratus se and am building a subwoower enclosure for it but ran Into an error. I forgot to measure the trunks opening across and height and the car is in the shop so I can't just go out and measure it. I was just curious if anyone here would possibly have the measurements for the opening and also the inside measurements as well just to make sure i have them correct. Thanks in advance to anyone that can help me out.

 

Weird questions are fine as we have lots of weird folks here. That said, how big are you planning to make the enclosure? Fill the whole trunk or just between the fender wells leaving the floor open to cargo? The car is old enough there may be one or more in a bone yard near you. You can always take some tools and see if there is anything you can use on one to make your enclosure. The floor panel over the spare tire should be close to the size. If nothing else, you can measure away to get the numbers.

 

[ol' grouch;3538391] I'm running 2 skar ZVX 15s so I gotta have around 9.5-10cf of airspace I found one picture online showing the outside is 48" so I assume and guesstimate it's around 40 inside so I started designing with 40w×35L×18h hopefully it'll fit if not I guess it'll be walled out in the back seat

 

I'm afraid the numbers don't mean anything to me. I trust you're going to use adapters to plug into your auto sound system. You'll get better results and you won't be cussed out down the road when you pull the system to sell the car and someone has to clean up the mess made by whacking out your system and butchering the wires.

Now, I did work in radio back in the early 70's and remember the reverb systems back in the 1960's and how they worked music. Are you going to use the system for music or music and voice? If voice, do you prefer singing or vocals like rap? Talking and singing use different harmonics. If you have more room towards the top, perhaps off set the speakers a bi to allow more reverb chamber room. Also, if you can leave an air gap on the sides of the box, this can add a bit of reverb too. Basically, it will give you more air to move. So, if you have one speaker slightly up and the other down, and overlapping in the center (i.e. the right speaker curve slightly under the curve of the upper) it will narrow the width while keeping air movement. A lot depends on what you are going to play.

There are acoustic formulae you can use, but I'm not familiar with the math required. I think you'd be best served by just getting a bunch of cardboard, either old boxes or sheets from a craft store, and mock up your air box then making it out of wood. One tip, I've seen boxes made out of rough plywood, but I'd sand it smooth as the rough finish will absorb some of the lower frequencies.