need help on box...

[photocrazy8 10+ year member]

ok so what your going to want to do is put in (4) four inch wide ports that are 12.87 inches long each....some one else please confirm this

each port displaces .09 cubes so .36 on disp on the ports

 

[K&c Customs 10+ year member]

pvc ports?

what if i build one big port in the middle

12.85 inches long and 20 inches tall..

6 in wide

would that work?

 

[photocrazy8 10+ year member]

pvc ports?
what if i build one big port in the middle

12.85 inches long and 20 inches tall..

6 in wide

would that work?

how can it be 20 in tall when the inner of you box is only 18.5 tall?

 

[K&c Customs 10+ year member]

sry bout that... i have been working and having no sleep.. i meant 18.5 inches tall

would that work?

 

[photocrazy8 10+ year member]

sry bout that... i have been working and having no sleep.. i meant 18.5 inches tall
would that work?

dont think so where did you get 12.85 from? how did you calculate that?

 

[K&c Customs 10+ year member]

like the ports that go straight down like a line... i will put it in the middle 6 inches wide and 12.87 inches long and 18.5 inches long...

should that make these subs rock?

ps: i meant to say 12.87

 

[K&c Customs 10+ year member]

do they sell pvc pipe that is 13 inches long? i can cut it to 12.87

 

[photocrazy8 10+ year member]

like the ports that go straight down like a line... i will put it in the middle 6 inches wide and 12.87 inches long and 18.5 inches long...
should that make these subs rock?

ps: i meant to say 12.87

well you missing the point of me asking how did you get that? did you calculate it or just pull down a random number?

the 12.87 in deep (long) in the box

 

[K&c Customs 10+ year member]

i thought that what you calculated... how long the port should be for it to be tuned to 35 hz

 

[photocrazy8 10+ year member]

i thought that what you calculated... how long the port should be for it to be tuned to 35 hz

ok wow i calculated 12.87 if you have (4) 4 in wide PVC ports. if you want a diff style its a different length. there is lots of math and physics in making a box. much harder than people think...

 

[K&c Customs 10+ year member]

well what would it be if i put one big 6 inch wide port?

 

[photocrazy8 10+ year member]

a fart box...only sounds good at one frequency...and a waste of time to build...

 

[K&c Customs 10+ year member]

well what would you suggest? 4 pvc pipes at 12.87 inches long

 

[photocrazy8 10+ year member]

yes that would make them bump good IMO....

 

[K&c Customs 10+ year member]

how wide should the ports be?