AERO port help

[basscort2009 5,000+ posts]

ok i have a dc level 5 15 in a 4.25 cube (after displacements) ported box. i have a face on there for 2 4 inch aeros. i only have lengths of aero for 2 4" ports that are 12 inches (34 htz) or one 4" port thats 5.8 (32 htz)

so with 2 of the ports i can only get to 34 htz when i really want 30-32. and with the one port i will only have 12.56 inches of port area (not enough IMO)

what should i do? any advise on tuning down that low with my options??

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[basscort2009 5,000+ posts]

bump. the show is tommorow and gonna start this tonight!

 

[basscort2009 5,000+ posts]

cmon guys. someone has to know about aeroports. or at least how much port area i can use minimun

 

[dappa5 10+ year member]

srry i wasn't here g/l hope it goes well

 

[skmfkr 5,000+ posts]

yeh your gonna want atleast 3 4" aeros

 

[basscort2009 5,000+ posts]

3?!?! i onlyhave room for 2. :/ i thought a 15 only need like 12-16 inches of port? or is that a 12?

 

[djman37 5,000+ posts]

make the ports external?

 

[basscort2009 5,000+ posts]

i still dont have room. and the backseat gets in the way if they r external. is there no way to make it work with one? not enough port area?

 

[gboo559 10+ year member]

3?!?! i onlyhave room for 2. :/ i thought a 15 only need like 12-16 inches of port? or is that a 12?

12-16 per cube. In your box you would need at least 3 4" aeros and 4 would be better. It'll work but might have port noise or not get low.

If you can somehow make those 4"s to 6"s and use 2 6" aeros you would have enough

 

[basscort2009 5,000+ posts]

yikes looks like i have some work to do. lol. well ill find out at the show tonight how much more area i need. im just gonna go with what i got and see what numbers i do then go from there.

 

[gboo559 10+ year member]

So you're gonna use the 2 4" aeros? LMK how it sounds cuz i have a 3.5 cu ft box with 2 4" aeros and IDK if its gna sound good.

 

[basscort2009 5,000+ posts]

yea i got 2 4"s budded up just the ends and they are each 6 inches long total so it will be tuned at about 45 wich is 5 htz higher than i want for burping but i will see and report back later tonight

 

[gboo559 10+ year member]

GL at the show

 

[basscort2009 5,000+ posts]

thanks!

 

[skmfkr 5,000+ posts]

yeh i had 3 4" aeros for 1 15 in a box that was 3.8 tuned to 44hz. and 12-16 per cube its for slot ports. aeros are like 8-10 per cube