how do you tune a box?

[snowbikeboy12 0]

basicly i want to build a box and i cant find any info on how to tune it. what i want to do is have round not square ports.

[Mathman 0]

just go to soundsolutionsaudio.com, there is a little button up to that says box tools and it will help you design it with whatever diameter port your going to use. put in what you want the tuning to be and the diameter along with the box info and sub displacement and it gives you the length it needs to be.

[95Honda 486]

There are a ton of online calculators... There are some even on this site... Just plug in your numbers and go....