Box ?'s for 12" L5

[on1wheel01 10+ year member]

Well im getting ready to build a box for a 12" L5 and had a couple of ?'s. It's going to be 32 wide 15 tall and 16 deep. I figured a 3" port and a 14" second wall port that gives me 2.7 cubes tuned at 33, port length of 31.5 and 40.5" of port. Does this sound about right? I figured a wider port would be better but it sky rockets the tuning and not sure how to get it back down.

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[on1wheel01 10+ year member]

bump nobody?

 

[Dr. Hertz 10+ year member]

Try increasing the length of the port

 

[on1wheel01 10+ year member]

yea but i dont want the port going to almost the right side. Didnt think it would work best that way

 

[supermaxx123 10+ year member]

the bigger the port, the smaller internal space, higher the tuning. That is if you try to increase the port after you've already figured out numbers. how much port area?

 

[on1wheel01 10+ year member]

Well with a 3" wide port and the second measurement wall of 14 it's 40.5" of port. Which is about right port length is 31.5

 

[FurbiesAndBeans 10+ year member]

isnt it a tad to big for a 12"? Wouldnt it be better to go for a box around 2 cu ft?

 

[supermaxx123 10+ year member]

oh the inches confused me lol. should be 40.5"^2 that helps me out. should be enough for that sub.

 

[on1wheel01 10+ year member]

Well kickers specs are 1.75 min and 3.25 max. So I figured this was right around the middle. So u guys think the 3" port will be fine? And 31.5 is good for the port length?

 

[on1wheel01 10+ year member]

bump all agree this should be fine?

 

[Actiorp09]

Well I am building a box for a guy at work. He has two American pro ws-9012 600 watts yea I kno they are crappy as they get but its what he has. They are currently in a garbage band pass box. And I figured if I get em in a ported it should sound way betteror should I go sealed?. He is not looking for a heavy hitting systemlets be honest its just not gonna happen. They are being powered by a small mtx thunder 4 channel. But anyways on to the ?s I am planning on building it 41" wide 14" high, and 15" deep, single chamber with a 3" wide slot port. It looks to be around 3 cubes tuned at 32hz. Would this be adequate cubes for the 2 12s as the web site does not say and I cant find the info anywhere. I am thinking subs up and port backor should I fire both back. Does this sound about right? Any ideas or suggestions? Thanx a ton guys

 

[on1wheel01 10+ year member]

Ok *** why did u repost a thread I made a year ago???

 

[SicAudio 5,000+ posts]

lol

anyway it should sound just fine.

 

[SicAudio 5,000+ posts]

isnt it a tad to big for a 12"? Wouldnt it be better to go for a box around 2 cu ft?

kicker subs , especially a square that is the same or bigger cone area than the next size up round model need alot of airspace.