Enclosure Shape

[PV Audio 5,000+ posts]

design:

the entire enclosure is divided, giving each sub 4 cubes with its own port, tuned to 32hZ. as you can see, each side of the enclosure will be mounted on top of a wheel well in an SUV. Dont mind the smaller boxes on either side of the design as they are battery boxes.

bad idea??

Jesus Christ, reflections and standing waves like a mother****er just from looking in it: you have far too many angles. To make it a bit simpler, try to not have protruding panels within the enclosure unless it's used for bracing. However, the best enclosure shapes are 1. sphere and 2. cylinder.
edited to make it sensible

 

[a_steezy]

subs/amps being pushed in this bad boy??

 

[Rashaddd 5,000+ posts]

Jesus Christ, reflections and standing waves like a mother****er just from looking in it, you have far too many angles. To make it a bit simpler, but best enclosure shapes are 1. sphere and 2. cylinder.

I may be wrong but...how can you get standing waves within a foot or two when the wavelength of anything he's playing out of it will likely be >15feet?

To the OP, I've never had issues with angles on sealed boxes, but I don't know for sure with ported, but I've never really heard its much of a problem.

 

[john denver 10+ year member]

try it and see looks like a nice box

 

[PV Audio 5,000+ posts]

I may be wrong but...how can you get standing waves within a foot or two when the wavelength of anything he's playing out of it will likely be >15feet?
To the OP, I've never had issues with angles on sealed boxes, but I don't know for sure with ported, but I've never really heard its much of a problem.

Because angles create what's known as destructive interference. Essentially, a wave reflected off another panel interacts with another, which cancels each other out. What you get is instead of a sine curve, you get a sine curve and a - sine curve (or a cos curve which is only 90 degrees out of phase) on top of one another. When you have many angles, these reflections make this much easier. Using a damping material such as fiberglass and polyfill helps to lessen it, but you can't polish rust and say it's fixed.