Fi Audio BL enclosure volumes?

[silenkiller 10+ year member]

Ok, so I'm under the impression that a 12 inch sub with the proper box space will outperform a 15 if its in too small of an enclosure. That said, I'm trying to decide between two 12 inch BL's or two 15 inch BL's.

Ok on FI's website, it states the following:

BL12 Ported box: 1.8-2.5 cuft @ 30-37Hz

BL15 Ported box: 2.8-4 cuft @ 30-37Hz

So, which is the optimum space for these subs? They give a range of cuft? More the better? Should I be aiming for 4cuft per 15? or would 2.8 work?

This will really make my decision about which subs to run. I'm going to be walling them into where my backseat was, with the entire trunk space as the enclosure. (all sealed off of course). So if I can get 8 cuft out of my trunk, go for the 15's?

Blah, any input would be cool guys.

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[wishuponansg 10+ year member]

if you can get 8 cubes, which you should definitely be able to do with a wall, then go with the 15s.

 

[silenkiller 10+ year member]

bah can anyone shed some light on this?

 

[silenkiller 10+ year member]

if you can get 8 cubes, which you should definitely be able to do with a wall, then go with the 15s.

ah thnx

 

[KyleBechtold 5,000+ posts]

the more space you provide them the less power you need to get them to the same point as if you gave them minimum space and rms power

 

[silenkiller 10+ year member]

Hm, I wonder if I can really get 8 cubes out of my trunk. that seems like a big friggen space.

 

[skitzafit 10+ year member]

i have had the 15 in 3@35 and it sounded fine to me

 

[silenkiller 10+ year member]

i wonder what i should tune it too. im looking to enjoy some low notes