car enviroment in sub box design

I know that it is important to factor in the cars specific enviroment when making an enclosure. What I wanted to know is how you factor this into your enclosure design.

with experience

asian boi is precisely correct, but with most cars you can be assured that there will be some cabin gain in the ~50 Hz region.  Avoid any peaking above 45 Hz in your design.  The in-car result would be additive.

....unless that is what you want to have...

-------------
Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

Maybe I should specifiy more...

I have BassBox Pro and it has an area where you can select "car". The you can load acoustic data for your vehicle. You can also do it manually by putting in db values at different frequencies.

So how would you know what these values are? How would you get these acoustic files? You don't need to explain it to me if it is complicated I'm more wondering if you use special eqiupment or a program or something.

whiterob wrote:

---

Maybe I should specifiy more...

I have BassBox Pro and it has an area where you can select "car". The you can load acoustic data for your vehicle. You can also do it manually by putting in db values at different frequencies.

So how would you know what these values are? How would you get these acoustic files? You don't need to explain it to me if it is complicated I'm more wondering if you use special eqiupment or a program or something.

---

Yes, it's called an RTA (real time analyzer).  It's basically just a microphone hooked to a computer program that measures the frequency response of your system in the car. After the measurments are taken, the program will present you with a graphical representation of your cars frequency resposne.

-Matt

-------------

cool, thanks