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2 15" Level 3 Ported Box Question


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Been running some numbers....how does this look.

Height - 18

Width - 38

Depth - 20

Port Dimensions

Height - 16.5

Width - 3

Length - 7.5

Given the speaker displacement is .15? and 3/4 MDF

I got

6.07 ft3 net airspace

31.92 Hz

How does this sound? Any recommendations? The only restraint I have is width....which is 40" max. Other then that I would like to stay at 18" height just to stay under the back seats....

Should I have more air space? Should I change the tuning? Any advice will help!

I am searching through the forums for answers also, but no hits yet.....

Edited by azphat12
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Been running some numbers....how does this look.

Height - 18

Width - 38

Depth - 20

Port Dimensions

Height - 16.5

Width - 3

Length - 7.5

Given the speaker displacement is .15? and 3/4 MDF

I got

6.07 ft3 net airspace

31.92 Hz

How does this sound? Any recommendations? The only restraint I have is width....which is 40" max. Other then that I would like to stay at 18" height just to stay under the back seats....

Should I have more air space? Should I change the tuning? Any advice will help!

I am searching through the forums for answers also, but no hits yet.....

you defiantly need more port area, also what amp are you putting it on? another thing is how much air space do you have after all displace ments? i really dont feel like doing the math. i would also tune it to 34-36 hertz

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you are going to want a 3 to 4 cubed box after all displacement since you are doubling its rms i suggest you do 3 cubes and from more experience 50 to 60 sq inches of port will work the best preferably 60 but no more than 60 but a little less than 60 is fine.

if you pm me your max dimensions i can come up with a box design for yo if you give me a couple days

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you are going to want a 3 to 4 cubed box after all displacement since you are doubling its rms i suggest you do 3 cubes and from more experience 50 to 60 sq inches of port will work the best preferably 60 but no more than 60 but a little less than 60 is fine.

if you pm me your max dimensions i can come up with a box design for yo if you give me a couple days

OMG...I am sorry! I noticed the subject. This will be for 2 15"

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