numerous subs???

[ultimate157 5,000+ posts]

Your lookin' at around 4.4 CF needed for a nice enclosure for 410s and around 10CF for 215s.

TOPIC OVER

Um, what 15 requires 5 cubes ?

 

[Andrizzle 10+ year member]

sounds best if u use 2 15s and 1 10.

preferably the two 15s on the left and right of the 10.

Also it has to be all JL.

 

[ultimate157 5,000+ posts]

sounds best if u use 2 15s and 1 10.
preferably the two 15s on the left and right of the 10.

Also it has to be all JL.

4 10w3's around a 13w7 is the best.

 

[MyFartsStink 10+ year member]

The way I see it, more power pwns more cone area when you are talking about spl. You can have a pair of 12's that are built to take alot of power, and in a correct enclosure, they most likely will own 10 12" woofers with the same amount of power. The more subs will not cancel each other out, but will add more amplitude.

 

[skadude016 5,000+ posts]

4 10w3's around a 13w7 is the best.

and the Italian racing chip for added db's

 

[Roid_monkey 10+ year member]

Did you know 3 12s is very close to 1 18?

3 12's is more than 1 18. its not that hard guys grade 8 math for area of a circle.

 

[Andrew12 10+ year member]

3 12's is more than 1 18. its not that hard guys grade 8 math for area of a circle.

El oh el @ this post

 

[Kyle_Keating 10+ year member]

The way I see it, more power pwns more cone area when you are talking about spl. You can have a pair of 12's that are built to take alot of power, and in a correct enclosure, they most likely will own 10 12" woofers with the same amount of power. The more subs will not cancel each other out, but will add more amplitude.

Doubling the cone area gives you +6dB (holding mass the same). Doubling the power only gives you 3dB. Cone area rules if you can get it.

The only reason to run multiple 10's is a possible thermal compression advantage of running 4 10's if they can indeed take more power than the two 15's and this can sometimes be the case, but not always. You don't see these things in pro audio or home audio because is just not efficient from a cost performance stand point. Generally you go large and then you start added more subs. 18's will give you the best distortion SPL ratio and most spl holding all other constraints constant. Most companies don't really make larger drivers so 18's are pretty much the norm for the largest "practical" size you can buy.

In general:

10's subs generally have bout ~0.031 m^2 of area. 15's are closer to ~0.08, so a 15 will give you more area than a 10... Two 10's that move as much as a 15 are probably more expensive to produce than the 15"

 

[jdawg 5,000+ posts]

ok

 

[ultimate157 5,000+ posts]

3 12's is more than 1 18. its not that hard guys grade 8 math for area of a circle.

Very close did not specify whether or not it was above or below. //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

 

[MyFartsStink 10+ year member]

Doubling the cone area gives you +6dB (holding mass the same). Doubling the power only gives you 3dB. Cone area rules if you can get it.
The only reason to run multiple 10's is a possible thermal compression advantage of running 4 10's if they can indeed take more power than the two 15's and this can sometimes be the case, but not always. You don't see these things in pro audio or home audio because is just not efficient from a cost performance stand point. Generally you go large and then you start added more subs. 18's will give you the best distortion SPL ratio and most spl holding all other constraints constant. Most companies don't really make larger drivers so 18's are pretty much the norm for the largest "practical" size you can buy.

In general:

10's subs generally have bout ~0.031 m^2 of area. 15's are closer to ~0.08, so a 15 will give you more area than a 10... Two 10's that move as much as a 15 are probably more expensive to produce than the 15"

I still think that power pwns cone area. Really there is alot more factors in the car that needs to be taken care of as well. But what would you rather do when you go to an spl comp? A dd 9915 with alot of power? Or 10 12" pheonix gold subs, with the same amount of power? See where I am getting at?

 

[ronrico418 10+ year member]

Um, what 15 requires 5 cubes ?

Well most are gonna be optimal in 4 cf but after displacemant and port area you are looking at needing 5 cf available to start with for a 15" single sub build.

 

[ronrico418 10+ year member]

Very close did not specify whether or not it was above or below. //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

Thank You -------- I did not specify I said it was close very close

 

[ronrico418 10+ year member]

The way I see it, more power pwns more cone area when you are talking about spl. You can have a pair of 12's that are built to take alot of power, and in a correct enclosure, they most likely will own 10 12" woofers with the same amount of power. The more subs will not cancel each other out, but will add more amplitude.

I agree with this statement 100%. Adversely if you are looking for Quality sound pressure more subs owns 1 sub with a billion watts. One sub is only gonna sound so good. As for SPL though you can make one sub do a 172 plus. However I am into music at insane levels clearly. Not obnoxious spl with no care of quality.

I'd take 12 woofers off of 250 each anyday over 3K on 1 sub.

By the way I have a BTL now and it impresses the chit out of everyone. Personally I hate it cuz My havocs sound WAAAAAAAAY Better!!

 

[ronrico418 10+ year member]

3 12's is more than 1 18. its not that hard guys grade 8 math for area of a circle.

Not sure what your saying. Can you do the math?

It takes 3 12s to equal the cone area of 1 18" (AGAIN ALMOST)

Stay of the roids hehe