getting air space

[jaa121884]

I have 2 audiobahn alum 15x and I was told by a very smart guy that i need 17 cu feet for a ported box, i drive a mediem sized car with an averaged size trunk 7 to 8 cu feet, should i add alot of polyfill? if that will not work i have also considered making a sealed box almost the size of my trunk and putting the subs foward what will be your ideas on sound quality/ oppionin on what i should do

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[Durex 10+ year member]

the so called smart guy is an idiot, no sub to my knowledge can take 17 cubes. a small or mediuim sealed enclosure would be perfect for those subs.

 

[mr_unreal 10+ year member]

lol, I think you mean 1.7 cubes

 

[dreamer 10+ year member]

Actually, depending on the Vas and Qts characteristics of the sub, 17 cubic feet is quite possible. Really large enclosures, like 14 cubic feet + happen all the time in car audio spl competition, and with a ported enclosure to get more SPL, it's the way to go. So, if you use all your trunk for the subs and port it, I'm sure that it will sound OK depending on how you tune it, but it wouldn't surprise me if the subs indeed wanted more airspace than that.

 

[topazracing 10+ year member]

i made the ? but b/c of logging in problems had to get a new login name, it was deff 17 feet, how do i go about porting it??? i have only used sealed boxes before and know nothing about ported boxes,,,

 

[dreamer 10+ year member]

a port is just a pipe of a certain cross area and certain length stuck into a box.

port length can be determined by a speaker modeling program such as winISD pro alpha

 

[BassiKLowZ 10+ year member]

i know people that run them subs in 1.8 cuft. If i were you i would try to find a manual for them or something, i seriously doubt its 17cuft. . . thats huge!

 

[BassiKLowZ 10+ year member]

actually the optimum for a sealed enclosure is 1.7 cuft. . .

http://www.audiobahninc.com/tech/Audiobahn2002boxspecs.pdf

 

[topazracing 10+ year member]

is their a downloadable program that i can get off the net to determine how to make the ports

 

[BassiKLowZ 10+ year member]

go to Blaupunkts website and go to the Technical Support link, they have a decent box calculator free to download.

 

[dreamer 10+ year member]

Originally posted by topazracing is their a downloadable program that i can get off the net to determine how to make the ports

http://www.linearteam.org

get the win ISD PRO alpha