Does size matter?

[IonRL205 10+ year member]

Ok i get it I don't have a computer so I have to use this as next best thing but would this be enough box for two 18

It would be going into a hhr

That's enough for one 18.

Better off with two 15s in that space.

 

[xShoWTeKx 10+ year member]

Ok i get it I don't have a computer so I have to use this as next best thing but would this be enough box for two 18

It would be going into a hhr

no 2 15's, defiantly not 18's

 

[Buck 5,000+ posts]

No just on about every level of that screen shot.

 

[Colossus281 10+ year member]

Ok i will do two 15 so that box size would be really good for two 15 or just good ?

 

[Buck 5,000+ posts]

You need to do a 15 that will work in like 3-3.5 cubes. You have 8.86 cubes internally, so unless you go with aeros, I'd say you'd have about a 1.5-2 cubes in port displacement if I had to guess.

 

---------- Post added at 09:21 PM ---------- Previous post was at 09:20 PM ----------

 

How much power do you want to run?

 

[Colossus281 10+ year member]

I would like to run 3k so 1500 watts to each

 

[Colossus281 10+ year member]

After the port 7.36 ft3

 

[Buck 5,000+ posts]

After the port 7.36 ft3

What is the port? How do you know the port without knowing the woofers (you can't)?

 

[VisceralSound 10+ year member]

Bigger surface area pushing more air.
Roughly, 1 18 = 2 12's, 1 15 = 2 10's as far as cone area goes. So say if you went with a 15 instead of a 10, you might be twice as loud, theoretically. You see?

Is that for the most part true? (obviously I didn't know) that's interesting to know. (I know its not exactly the difference)

 

[Buck 5,000+ posts]

Well just simply taking the surface area of a circle:

8= 50.27

10= 78.54

12= 113.10

15= 176.71

18= 254.47

So you can multiply these by whatever.

 

---------- Post added at 09:45 PM ---------- Previous post was at 09:45 PM ----------

 

But remember Sd (t/s parameter) is the effective piston diameter/surface area.

 

[Colossus281 10+ year member]

Ya sorry im using the 15 icons and after port its 7.46ft

 

[Colossus281 10+ year member]

So after sub displacement and port displacement I want to be at 7ft?

 

[Buck 5,000+ posts]

If you want 101 help you can pm/email me.

 

[09civic 5,000+ posts]

Just do 1 nice 18 and call it a day.

 

[Colossus281 10+ year member]

Just do 1 nice 18 and call it a day.

Ya like a mmmmm DDZ I heard 2 of them on two m4a at .5ohm all I can say was whole$hit