Quick Q about adding set of subs to a box and how it affects tuning

[JakeM 10+ year member]

I have two 4.14cuft boxes (theyre actually one big box with a divider down the middle) so the entire box is about 8.28cuft. Anyway i have the subs inverted on the top of the box and its tuned to 36hz. What affect would there be if I added two more subs to the from of the box so there are two subs sharing the same 4.14cuft of airspace? I can post pics if I didnt explain it well enough.

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[mazdakid 5,000+ posts]

are they 12's? so you have 1 sub in each 4cuft box?

 

[hoss 5,000+ posts]

it would create an isobaric style alignment. which would make the woofers think they are seeing double the airspace, which i dont know how it would react in a ported type application.

i dont think you would need that much airspace though... in my oppinion, you will be better off just leaving it as it is.

 

[JakeM 10+ year member]

theyre 15's, so no one can give me a definent answer?

heres a picture of what I have. I want to mount my two new ones on the front regular, not inverted

 

[lincolnls 10+ year member]

i would leave it alone, kickers love big box's, i know the kicker l7 15 2006 like about 6cf a piece

 

[JakeM 10+ year member]

so it wouldnt even be worth it to get two more?

 

[yacob.naif 10+ year member]

nah, they wouldn't be able to hit the lows as well in the reduced airspace

and 15" L7's sound like *** above 50hz or so, imo

 

[JakeM 10+ year member]

ok, well what would it hit harder if I just sealed the box and but the two in front?

 

[hoss 5,000+ posts]

no.

adding more speakers is not the answer to getting louder.