Port Area per Foot?

[inm]

I've read that I should have at least 12 in2 per ft. Is 19 too much?

I've been playing around with ideas for a new box.

If it matters: 2 15" Lvl3, 9.95ft3 gross volume.

[dkahns51]

I've read that I should have at least 12 in2 per ft. Is 19 too much?

I've been playing around with ideas for a new box.

If it matters: 2 15" Lvl3, 9.95ft3 gross volume.

It should be 16-19 Port area per foot, That is what ive always been told.. so yeah your good. 9cubic for 2 15's seems like a big box? Mines 6.5 for 2 15's and its doing me great.

[inm]

I've read that I should have at least 12 in2 per ft. Is 19 too much?

I've been playing around with ideas for a new box.

If it matters: 2 15" Lvl3, 9.95ft3 gross volume.

It should be 16-19 Port area per foot, That is what ive always been told.. so yeah your good. 9cubic for 2 15's seems like a big box? Mines 6.5 for 2 15's and its doing me great.

Well, DC calls for 3cubes per sub, and I thought that was after port displacement. Or is it before port displacement?

[727Designs]

Exact amount will vary depending on the sub/enclosure/vehicle/etc. Best bet is to get a program like BBP6 to design and then plot it and check port velocity. 12-19in^2 is usually just a good estimate on what will work out. Take BBP6, enter the t/s parameters, design it up, and check the graphs. It will also tell you some other valuable information like the F3 point, and show you the response across a range of frequency.

[727Designs]

I've read that I should have at least 12 in2 per ft. Is 19 too much?

I've been playing around with ideas for a new box.

If it matters: 2 15" Lvl3, 9.95ft3 gross volume.

It should be 16-19 Port area per foot, That is what ive always been told.. so yeah your good. 9cubic for 2 15's seems like a big box? Mines 6.5 for 2 15's and its doing me great.

He's 9.95 gross, not net.

[inm]

Exact amount will vary depending on the sub/enclosure/vehicle/etc. Best bet is to get a program like BBP6 to design and then plot it and check port velocity. 12-19in^2 is usually just a good estimate on what will work out. Take BBP6, enter the t/s parameters, design it up, and check the graphs. It will also tell you some other valuable information like the F3 point, and show you the response across a range of frequency.

Where can I get BBP6?

Edit-

Ahh, BB6P is what you meant. I found it.