will this cause cancalation

[dustin420 10+ year member]

ok, i wanna do 3 15inch AA atals's ported in my jeep, but i can't fit all 3 so they are firing up with the ports firing back, so my question is will it be ok if i have 2 subs firing up and the other sub firing back with the ports. hope this makes sense ill get a drawing up soon.

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[billabongcr 5,000+ posts]

if you do it right. and pictures. my gf gets her jeep next month.

 

[keifersracing 10+ year member]

what is the size of the box you would like to do. we can go from there

 

[dustin420 10+ year member]

http://s74.photobucket.com/albums/i2...=untitled2.jpg heres a pic srry it sucks really bad but hopefully you get the idea, the black is the subs 2 firing up and one firing back towards the hatch, the red is the ports, firing back, would this work or would i get cancalation from the sub firing back.

also i've been doing some calculating and came up with these figures could some1 look them over and make sure there correct, box dimensions H-20 W-39 D-24, wood thickness.75, sub displacement .3ft tune 33hz im thinking either six 4inch ports which would be 20.85 in length 75.398 port area, or four 5inch ports for 21.277length 78.54 port area, which would better im thinking the 5inch ports ause of the more port area, im also thinking of doing 3 6inch ports it would give me more port area but it would tune 33hz the lowest i can fit.. any help greatly appreciated.

if it sounds like im talking to myself in some parts its cause i just copyed and pasted it from another forum im on. ohh hopefully i'll be able to get pics of my current system soon.

 

[keifersracing 10+ year member]

http://s74.photobucket.com/albums/i2...=untitled2.jpg heres a pic srry it sucks really bad but hopefully you get the idea, the black is the subs 2 firing up and one firing back towards the hatch, the red is the ports, firing back, would this work or would i get cancalation from the sub firing back.
also i've been doing some calculating and came up with these figures could some1 look them over and make sure there correct, box dimensions H-20 W-39 D-24, wood thickness.75, sub displacement .3ft tune 33hz im thinking either six 4inch ports which would be 20.85 in length 75.398 port area, or four 5inch ports for 21.277length 78.54 port area, which would better im thinking the 5inch ports ause of the more port area, im also thinking of doing 3 6inch ports it would give me more port area but it would tune 33hz the lowest i can fit.. any help greatly appreciated.

if it sounds like im talking to myself in some parts its cause i just copyed and pasted it from another forum im on. ohh hopefully i'll be able to get pics of my current system soon.

link will not work let me see what i can do for you you are about 15 to 20 min from me

 

[dustin420 10+ year member]

holy sh1t i just noticed your from bryan, lol you wouldn't happen to know jim potter would you, hes my dad, lol and i live in montpelier i just use hicksville cause its funny.

 

[dustin420 10+ year member]

http://s74.photobucket.com/albums/i248/cenus/?action=view&current=untitled2.jpg see if that works.

 

[keifersracing 10+ year member]

holy sh1t i just noticed your from bryan, lol you wouldn't happen to know jim potter would you, hes my dad, lol and i live in montpelier i just use hicksville cause its funny.

i am in west unity

 

[keifersracing 10+ year member]

do 4 4" at 10" long and i think you can get all 3 at the top but i may be better to use just 2 sub what kind of amp are you going to use

 

[dustin420 10+ year member]

here are some pice of my current setup, 2 Atlas's sealed and RE12.1 amp.

 

[keifersracing 10+ year member]

here are some pice of my current setup, 2 Atlas's sealed and RE12.1 amp.

do you have any spec on the subs

 

[dustin420 10+ year member]

what 4 4inch areos would only have 50sq inchs of port, the 3 six inch ports have about 90sq inchs LOL.

 

[dustin420 10+ year member]

hang on let see if i can find some.

 

[keifersracing 10+ year member]

hang on let see if i can find some.

ok

 

[dustin420 10+ year member]

im having a hard time find specs so it might be a little bit.