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View Full Version : Take a look please!! Yes/No question



JJ30
08-30-2012, 10:07 PM
Hi everyone, will these 2 boxes perform the same? I designed a single sub box on the re box calculator, and made it into 1 box on sketchup 8. Both have the same specs, 1st one just doesn't have a separating wall between the 2 chambers. If the answer is no, should I decrease the width of the port by 1.5" to compensate for the removal of the separation?

Edit: (I want to build the dual driver box with a single port, not the other one)

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UnderFire
08-30-2012, 10:11 PM
Decreasing port width won't work because it will add more net space to each chamber, how much change there will be, I don't know.

JJ30
08-30-2012, 10:32 PM
Decreasing port width won't work because it will add more net space to each chamber, how much change there will be, I don't know.

Will it be a substantial change? It would be for 2 sa-15's which require 3.5f^3 and these are like 3.7^3 so a little big but minus .17^3 for the driver displacement.. Also it's @ 35&change hz

quackhead
08-30-2012, 10:41 PM
Will it be a substantial change? It would be for 2 sa-15's which require 3.5f^3 and these are like 3.7^3 so a little big but minus .17^3 for the driver displacement.. Also it's @ 35&change hz

have you studied driver and port placement in relation to the vehicle it is going to be in? I am assuming this is for spl based on the choice of driver used, so port/driver placement in the vehicle is crucial to success. I am only saying this because with the amount of design and effort involved in the build, you will want the most fruit for your labor.

quackhead
08-30-2012, 10:47 PM
keep in mind, if you can gain 3 or 4 db at the headrest, it would be the same as almost doubling the amp power or cone area. This applies to daily just as much as comp.

nathans.sound
09-07-2012, 12:55 AM
I have had this same question have you found this out

RangerDangerV2
09-07-2012, 12:57 AM
no to that design.