Need Advice re: Torres Calculator results

[Clarence Joseph Sales]

What would be the disadvantage of 3.5cuft compared to 4cuft in terms of loudness? Is it noticeable?

[alaskanzx5]

you would have to build both to know wich is louder by ear but on a meter it could gain or lose some. a bigger box is more effecient but if the subs cant preasurize the air in the box then you can lose output.

[Clarence Joseph Sales]

you would have to build both to know wich is louder by ear but on a meter it could gain or lose some. a bigger box is more effecient but if the subs cant preasurize the air in the box then you can lose output.[/

you would have to build both to know wich is louder by ear but on a meter it could gain or lose some. a bigger box is more effecient but if the subs cant preasurize the air in the box then you can lose output.

Can't you just add power if subs can't pressurize the box you built?

[alaskanzx5]

yes and no, once the sub is reaching its full xmax its not gonna be pretty if you force it to move more. then you pushing the mechanical and thermal limits of the sub.

rms power handling of a sub has more to do with thermal power handling from my understanding. a smaller box gives you better mechanical power handling by helping to keep the sub under control and not bottoming out. over powering in to big of a box can push the subs past their mechanical limits while overpowering in a smaller box can increase its mechanical limits but push its thermal limit. thats why when overpower you cant play for as long of periods of time. sub gets to hot and burns up.

in general smaller box is less efeceint but can give you better power handling. a bigger box gives you better effeceincy but less power handling.

[Clarence Joseph Sales]

So would you advice just to build a 3.5cuft for each chamber? What would be the downside of having a smaller box than reccomended?

[alaskanzx5]

for 15" sub you will want to be around 2.75-3.5cuft per sub. i know nothing about your subs, some brands like bigger some like smaller. if your willing to do some build test repeat then i would start somewhere in the middle.

[Clarence Joseph Sales]

for 15" sub you will want to be around 2.75-3.5cuft per sub. i know nothing about your subs, some brands like bigger some like smaller. if your willing to do some build test repeat then i would start somewhere in the middle.

I'm thinking to be safe go between 3.5 - 4 cuft?

[alaskanzx5]

If you have 2 chambers then each chamber need to be 5.5-7cuft.

[Clarence Joseph Sales]

If you have 2 chambers then each chamber need to be 5.5-7cuft.

5.5-7cuft per sub or per enclosure? ( 1 enclosure holds 2 subs) i'm leaning towards design 2 ( 2 subs port in between the subs) what can you say about the results in torres that i made?

[alaskanzx5]

its 5.5-7cuft per chamber (box for 2 subs). i would do the design in #1 so that the ports will be at the top of the car along the roof but i would drop the volume down to 7cuft and that will help make it easier to get the port volume up to 14-15" per cuft.

or if you want to do option #2 i would stack on box on top the other so that the port would be going up and down in the middle of the car. once again though get the volume down closer to 7cuft and that will help make it easier to get to the 14-15" per cuft