in a sealed box, does the shape of the box matter?

[wickedmax 10+ year member]

would a wide box with shallow depth used for 1 12" sub sound the same as a box with the same demensions for each side? ...considering the volumes are all the same. im contemplating on building myself a sealed box for 1 RE SE12 (this should be interesting) and i want it to go in the back of my trunk with the sub facing through the trunk pass through hole. thanx

Click to read more...

 

[AScreenName 10+ year member]

not really

but all of the sides can't be equal length

it can't be an equal like cube

 

[Eroberer 10+ year member]

What's wrong with making a cube?

I want a box with a flat back, that tapers upwards in the front. Gonna have to relearn some trapezoid math, but definitely building my own (I had this idea before I read that it was a good thing). But anyway, will this design sound the same as any other kind of box?

An e12O.44 is going into the box.

 

[AScreenName 10+ year member]

basically with a cube, all of the sides are the exact same length/width/depth. when the sound wave bounces off of the rear baffle and towards the front, since the lengths are exactly the same, the soundwaves cancel each other out. or thats what i beleive happens. other people know more about it than i do, but that is my general understanding of it.

 

[hoss 5,000+ posts]

in a sealed box the the back wave is simply kept seperate from the front wave, so if the back wave cancels itself out it shouldnt matter. as long as the front wave doesent bounce off anything and cancel, it should be fine.

 

[HypnotizeMinds 10+ year member]

it doesnt matter if the box is a perfect cube. it makes no difference. also, it doesnt matter what shape the box is just so long as there is the proper amount of airspace. also if you are building a ported box, there must be the width or diameter of the port's length between the end of the port and the back of the box.