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THUNDERBIRD
12-07-2007, 04:16 PM
anyone know of where i can find this? i used one once or twice for ported boxes. i want to find it again and i want one for sealed boxes too. i liked it because it would also give me a cut sheet and tell me how much of a sheet of mdf i would use.

dan5505
12-07-2007, 04:24 PM
this is a good one for vented boxes
http://www.subwoofertools.com/forum/ported-box.asp

i know there is a lot more of them out there

jdawg
12-07-2007, 04:26 PM
cut sheet for sealed boxes? Jesus dude where were you in 7th grade geometry?

bjfish11
12-07-2007, 04:34 PM
this is a good one for vented boxes
http://www.subwoofertools.com/forum/ported-box.asp

i know there is a lot more of them out there

A lot of people have said this one is very inaccurate...

528hz
12-07-2007, 04:34 PM
http://www.bcae1.com/spboxnew2.htm

This one is simple...

dan5505
12-07-2007, 04:37 PM
A lot of people have said this one is very inaccurate...

Really?, maybe i should quit recommending it then
Would it be a bad idea to compare it to the results of winisd?
the last box i designed, i threw it all into winisd, just to confirm, turned out the same.
The port area was within a couple cubic inches of each other.

dan5505
12-07-2007, 04:37 PM
http://www.bcae1.com/spboxnew2.htm

This one is simple...

link doesnt work

bjfish11
12-07-2007, 04:42 PM
Really?, maybe i should quit recommending it then
Would it be a bad idea to compare it to the results of winisd?
the last box i designed, i threw it all into winisd, just to confirm, turned out the same.
The port area was within a couple cubic inches of each other.

I dont have any experience with it myself.... but I have read some respected members have put the math to it, and proved it pretty inaccurate. I think it just varies. Sometimes its on, and sometimes its off...

IgnoreMe
12-07-2007, 04:45 PM
cut sheet for sealed boxes? Jesus dude where were you in 7th grade geometry?

lol.

all you need to know to calculate a sealed box is

internal width x internal depth x internal height and divide it by 1728

adas
12-07-2007, 04:45 PM
http://www.reaudio.com/speaker_box/LPort_Box_Calc.html

While it's made to be a ported box cutsheet, just dont worry about cutting the port L1 and L2.

But seriously, for a sealed box if u can't figure it out your one lazy f***er :D

Atimm693
12-07-2007, 05:23 PM
http://www.reaudio.com/speaker_box/LPort_Box_Calc.html

While it's made to be a ported box cutsheet, just dont worry about cutting the port L1 and L2.

But seriously, for a sealed box if u can't figure it out your one lazy f***er :D

Thats the one i use. Seems pretty acurate to me.

THUNDERBIRD
12-07-2007, 05:49 PM
i know how to do them i am not lazy i just wanted one that will give me a cut sheet so i dont have to go threw it all and make one, with the subtract 3/4 here and 3/4 there. i like to just get the panel sizes and cut them. that way i know how much wood i need.