helt with port length on box 5 15's

[kickflip01 10+ year member]

I am building a box for 5 low powered 15's and i cant figure out the port length with win isd. if anyone could please help that would be great.

the box dimentions are 34" deep 31" wide and 15" tall with 3/4" mdf. I want the port to be 7.5" wide and 10" tall i just need the port lenth and i should be good to go.

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[CRXBMPN 5,000+ posts]

you should tell us what you want it tuned to

 

[DB-Audio 10+ year member]

^^^^this^^^^

 

[ascitiesburn69 10+ year member]

5x 15"s??? Are you going to arrange them like a huge sony xplod sub?

 

[t1990le 10+ year member]

5x 15"s??? Are you going to arrange them like a huge sony xplod sub?

his ish dont bang it xplods! //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[marcotheclepto 10+ year member]

5x 15"s??? Are you going to arrange them like a huge sony xplod sub?

that would actually look cool.. pentagonal... but x2 on desired tuning would be nice to know the brand subs your using as well, to take account for the displacement as well as suggest a tuning if you dont know what your aiming for.

 

[ascitiesburn69 10+ year member]

And only 75 sq Inches of port for 5 15"s??? you should have more than double that for a box that large

 

[marcotheclepto 10+ year member]

assuming that those are internal dimensions thats only like 9 cubes even before bort and sub displacement... ehhhh

 

[kickflip01 10+ year member]

the box is for my friend and were just experimenting with trying to have the port face into the car through a hole in the seat. the subs are only 200w a piece, and there will be 3 on top and 2 facing back. he wants it tuned around 40 hz.

 

[CRXBMPN 5,000+ posts]

that is 7.49 cubes according to bassboxpro, and you are going to want around 13-14" of port... that puts you a bit under 40hz but i did not take into acct the sub displacement. Good luck.

 

[CRXBMPN 5,000+ posts]

do four 15's, it would probably match up better

 

[mazdakid 5,000+ posts]

id do no more than 2 15's if thats all the space you have