Box Shape Effect Sub?

hes right shape do not matter only the air volume has to be correct for it to sound good and perform the way its supposed 2

I took a speaker enclosure design class about 3 years ago and learned... Technically, yes there are differences, however the human ear will never be able to "hear" a difference. You run into things like free standing waves and interior box resonances. We calculated all of the boxes using the Golden Ratio...I believe most home theatre speaker enclosures are built on the "Golden Ratio" as well( Definition: Golden Ratio ). This is an example of how its done: Vb (Volume of box desired): 1.5 cu. ft. Vb ^ (1/3) : 1.14471 ft. Multiply Vb^(1/3) by the following ratio numbers: 0.61803     |     1     |     1.61803 Gives: (dimensions in feet) .707465     | 1.14471 |     1.85218 Multiply each of these numbers by 12 to get the dimensions in inches: 8.48958"    | 13.7365" |     22.2262" Assuming everyone reading this knows that the conversion factor to convert from cu. ft. to cu. inches is 1728. Multiplying each of these numbers together gives the total cubic inches of the enclosure: 2591.96 cu. in. Dividing this by 1728 results in 1.49998 cu. ft. which was the initial desired volume of the box. Now that the "Golden Ratio" was used this will ensure no standing waves, etc will be induced by the box dimensions. The problem with doing this is many times it is unsuitable for the trunk of a car because of size constraints.